Florida kaolins and clays ( FGS: Information circular 2 )

O F CONSERVATION

George Vathis, upprvisor

FLORIDA GEOLOGICAL SURVEY
Herman Gunter, Director

INFORMATION CIRCULAR No. 2

FLORIDA

K AO L0I N S

AND CLAYS

Prepared by

James L. Calve Associate Geologist
ra olic -/y3
Florida Geological surveyy

TALLAHASSEE,

FLORIDA

1949

I

F LO R I D A

STATE: BOARD

Jr* 'J i" ." "- ""

i 5 0 .

-77-

.-", '- 5 --
.... '. -: ..- -

. .- .- -..- ,.----_. .... ....... ,..
... ....

View Of dgar Plastic Kaolin Company pit at Edgar, Putnam County,

showing dredges kaolin-bearing sand, and overburden. Drawn from
Photographs taken by Gunter and Stubbs in December 19o0.
,.o,... __.... -,,_5
,,..-- ,.. ,._,,.,.. ,.. :4, -
_y-~ o7
---,, i .?..... ,,. ..... __ _..,..
Vie of, EdgarL' Plasti ol op\ys i tEgr ta ony
showing. drege kalnbern sad n vrure.Danfo

FOREWORD

During the years that have elapsed since the Florida Geological Survey

published in its 15th Annual Report, 1922-1923, "A Preliminary Report on the

Clays of Florida", by Olen G. Bell, additional data have been gathered by

the Survey. These data are presented here and make available to researchers

and to industry knowledge of Florida's clays which supplement and amend the

earlier report. Part I contains factual data on the sedimentary kaolins of

the State which were abstracted from an unpublished manuscript: "Florida

Kaolins", by Mr. Frank Westendick. Mr. Westendick determined these data

while employed by the Florida Geological Survey, however, the manuscript,

dated 1941, was prepared under an agreement with the Survey in cooperation

with the United States Bureau of Mines. A revised copy of Mr. Westendick's

manuscript which incorporates the editorial suggestions made by R. W. Smith,

Hewit Wilson, and T. A. Klinefelter of the Bureau of Mines, is on file and

may be consulted in the offices of the Florida Geological Survey. Part II

of this report contains heretofore unpublished data on the common clays of

Florida and is an abstract of a manuscript written by Dr. James H. C.

Martens entitled: "The Clays of Northern Florida." A copy of the original

manuscript, dated 1929, is on file and may be consulted in the offices

of the Survey.

(Y Z /z^ / ^ <^

CONTENTS

Part I

Florida Kaolins. . . . .
Introduction. . . . .
General Properties. . . . .
Extent of Deposits .. ........
Laboratory Procedure and Explanation of Test Data
Description of Deposits by Counties
Clay County. . . . .
Jackson County . . .
Lake County. . . . .
Marion County........ .. .. .
Pasco County . . . . .
Polk County . .
Polk County. .................
Putnam County . . .
Santa Rosa County. . ... .
Walton County. . . . .
Washington County. . . .

Part II

The Clays of Northern Florida. ...
General Statement . . .
Description of Deposits by Counties
Alachua County
Campville . . .
Hawthorn. . . .
Bay County
Panama City . .
Calhoun County
Blountatown . .
Darling Slide . .
Clay County
Green Cove Springs. .. ..
Russell .. ...
Middleburg. .. . .
Duval County
Dixton. . . .
Escambia County
Molino. .. .
Century ...........
Pine Barren . .
McKinnonville . .
Muscogee. . ..
Yniestra. . ..
McMillan. ... . .
Flagler County
Bikes Prairie .. . .
Black Point . .....
Haw Creek . .
St. Johns Park, .
Gadsden County
Havana. . .
Quincy. . .
Midway.. .. .
River Junction. .

. . . . . 20
. . . . . 20

. . .. . 20
. . . . . 21

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S 21
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22

*
4 4
4 *
* 4

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S. . 31

Page

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* 0 0 *

Oulf County
Port St. Joe . * .
Wewahitchka . ..
Holmes County
Argyle .. . ,
Ponce de Leon. . . .
Jackson County
Cottondale . . . .
Marianna . .
Round Lake .........
Jefferson County
Wacissa. . . .
Leon County
Woodville. . . .
Liberty County
Alum Bluff . . .
Bristol Landing. . . .
Estiffanulga . .. .
Nassau County
Callahan . . . .
Boulogne . . .
Orange Bluff . .. .
Brick Yard Landing St. Mary's River.
Okaloosa County
Milligan . . . .
Putnam County
Springside ... .
Woodburn . . . .
Orange Mills . . .
Hopkins Point. . . .
St. Johns County
Hastings . ..... ..
Santa Rosa County
East Branch Coldwater River. .
Allenton School. . . .
Crow Bridge, West Branch Coldwater Rd
Milton . . . .
Walton County
Paxton . . . .
Red Bay. . . . .
Argyle . . . .
Washington County
Caryville. . . ..
Chipley . . . .
Vernon . . . .
Wausau . .. .

Page

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* *. . . 35

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S. . . .39

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. 44
. 44
. 45
. 45

ILLUSTRATIONS
Figures
View of Edgar Plastic Kaolin Company's pit,
Edgar, Putnam County . . . .
Distribution of Kaolin in Florida and Area Included
in the Common Clay Investigation . .. .

Tables
,1 Chemical Analyses of Florida Plastic Kaolins and Clays
2. Physical and Ceramic Data of Florida Plastic Kaolins and
3. Physical and Firing'Properties of Florida Clays. ..

. Frontispiece

. .Facing page 1

. . 12
Clays . 15
. . 48

Distribution of kaolin in Florida and area included in. the common clay investigation

Gulf

o f

Mexico

Atlantic

Ocean

Approximate location of kaolin-bearing sand areas

SOutline of area inclosing the counties in which the common
clay deposits described are situated

Part I

FLORIDA KAOLINS

INTRODUCTION

Florida kaolins, because of certain superior properties, are used almost

exclusively for fine ceramic.whitewares and are incorporated in nearly all

standard whiteware bodies. The known extent of the proven kaolin deposits of

Florida is limited and a great deal of exploratory drilling and testing will

be necessary before reserves can be fully established. The data presented

here were gathered during an investigation to determine the quality of unde-

veloped kaolin outcroppings, old workings, and deposits reported from well

drillers records.

GENERAL PROPERTIES

The kaolins of Florida occur naturally mixed with large quantities of

sand and small quantities usually less than 2 percent, of mica, iron and other

opaque minerals. The kaolin content of the sands varies from 5 to 45 percent

and averages about 18 percent. The sand and mica are readily eliminated by

the usual commercial washing methods, but the color of the raw kaoli.n does not

yield to the generally used bleaching processes. The light cream tint of the

washed kaolin while not acceptable to the paper trade is not objectionable in

ceramics. When fired, the kaolin has a near white tint about the same as the

best Georgia kaolins. Florida kaolin has the unique property of high plas-

ticity which is so pronounced that for years the trade has used the term

"Florida Plastic Kaolin." It has about the same degree of plasticity as the

usual English or Western Kentucky and Tennessee ball clays. In some ceramic

bodies, notably certain types of dry-pressed porcelains, complete substitution

of Florida kaolin for the kaolin-ball clay body is possible. In other bodies,

where the ware is moulded in the plastic state or cast, Florida kaolins cannot

be substituted for ball clay completely because of their high drying and

firing shrinkages. The ball clay content of such bodies may be decreased

decidedly by the addition of some Florida kaolin and this partial substitu-

tion results in a body that has good plasticity and shrinkage properties as

well as a desirable gain in color. There is a general trend in the ceramic

industry to employ dry press procedures rather than plastic or cast, and the

increased use of Florida kaolins seems to be assured.

EXTENT OF DEPOSITS

The known deposits of kaolin having commercial value occur in a large area

in east central Florida and in a smaller area west of the Apalachicola River in

western Florida. The central Florida deposits lie within the Lake Region and

extend in a belt up to 25 miles wide from southern Clay County to southern Polk

County, a distance of 150 miles. The eastern boundary of this belt is approx-

imately 10 miles west of the St. Johns River. Although the kaolin is not con-

tinuous throughout the area described above, the irregular outlines of individual

deposits are suggestive of remnants of a former continuous bed of kaolinitic

sand.

In the western part of the State, kaolin deposits occur in a narrow belt

that extends from Round Lake, Jackson County, westward to the Escambia River,

Santa Rosa County, a distance of 125 miles. Here the deposits are more

scattered and more irregular in their occurrence than those of central Florida

and there has been no commercial development.

Kaolin deposits have been reported in other sections of the State, notably

in Citrus, Hernando, Levy, Pasco, and Sumter counties, however, these deposits

are for the most part white phosphatic clay and have been mistakenly identified

as kaolin.

be substituted for ball clay completely because of their high drying and

firing shrinkages. The ball clay content of such bodies may be decreased

decidedly by the addition of some Florida kaolin and this partial substitu-

tion results in a body that has good plasticity and shrinkage properties as

well as a desirable gain in color. There is a general trend in the ceramic

industry to employ dry press procedures rather than plastic or cast, and the

increased use of Florida kaolins seems to be assured.

EXTENT OF DEPOSITS

The known deposits of kaolin having commercial value occur in a large area

in east central Florida and in a smaller area west of the Apalachicola River in

western Florida. The central Florida deposits lie within the Lake Region and

extend in a belt up to 25 miles wide from southern Clay County to southern Polk

County, a distance of 150 miles. The eastern boundary of this belt is approx-

imately 10 miles west of the St. Johns River. Although the kaolin is not con-

tinuous throughout the area described above, the irregular outlines of individual

deposits are suggestive of remnants of a former continuous bed of kaolinitic

sand.

In the western part of the State, kaolin deposits occur in a narrow belt

that extends from Round Lake, Jackson County, westward to the Escambia River,

Santa Rosa County, a distance of 125 miles. Here the deposits are more

scattered and more irregular in their occurrence than those of central Florida

and there has been no commercial development.

Kaolin deposits have been reported in other sections of the State, notably

in Citrus, Hernando, Levy, Pasco, and Sumter counties, however, these deposits

are for the most part white phosphatic clay and have been mistakenly identified

as kaolin.

LABORATORY PROCEDURE AND EXPLANATION OF TEST DATA

Standard laboratory procedures were used in making the screen analyses

and the forming and drying tests. The slaking time tests as well as the

transverse strength determinations in both the green and fired tests, were

made on mixtures of 50 percent kaolin and 50 percent potter's flint. Standard

ceramic test procedure was followed in the determination of the firing charac-

teristics except for the method of firing. Individual firings were made to

cones 010, 05, 1, and 4 in a Caulkings Revelation No. 5 gas fired pottery kiln,

and to cones 7, 10, and 15 in a gas fired Denver Fire Clay Company muffle type

assey furnace. The Caulkins kiln was heated at the rate of 65 degrees F. an

hour for seven hours, then at the rate of 80 degrees and then 90 degrees. The

heating rate was slowed down at the finish and the final cone was allowed to

soak down. A uniform rate of 90 degrees an hour was used in heating the

Denver furnace.

Description of Deposits by Counties

CLAY COUNTY

Although the southwestern portion of Clay County lies within the proven

area of kaolin-bearing sand, new information for only one locality is avail-

able. The chemical and'physical test data on four samples collected from the

old kaolin mine at "Chalk Hole", about five miles east of Keystone Heights,

indicate the kaolin to be high grade and comparable with the best produced in

Florida. This mine is situated on the Foremost Properties, a portion of the

J. C, Penny-Owinn Corporation's holdings, in Sec. 6, T. 8 S., R. 23 E.

Descriptions of the samples from this property follow:

0-353 Grayish crude kaolin-bearing sand from boring in floor of pit.

0-3541 Grayish crude kaolin-bearing sand from boring 30 feet south of pit.

0-355 Washed kaolin obtained from ball-like masses on edge of lake.

0-467' rayish crude kaolin-bearing sand from boring in floor of pit.

The chemical analysis, see Table I, was made on a composite of sample 0-467;

physical test data, see Table II, are presented on all these samples.

JACKSON COUNTY

White kaolin-bearing sand is exposed in the road materials pit located

1.7 miles south of Round Lake on J. A. Seale's property, Sec. 24, T. 3 N.,

R. 12 W. Sample 0-400 is a composite sample from auger holes drilled to the

depth of 16 feet and located within 12 feet of the exposure of white kaolin

in the pit. The chemical analysis, see Table I, and data on physical prop-

erties, Table II, indicate this kaolin to be very similar to the better clays

of Putnam County.

LAKE COUNTY

In the past Lake County has been one of the principal producers of sedi-

mentary kaolin in Florida, however, since 1932 or 1933, all of the Florida

kaolin production has come from mines located in Putnam County.

Numerous deposits of kaolin-bearing sand occur throughout the entire

western half of the County but data are available for only three localities:

1. Lake County Clay Company (inactive). This pit is located 2.2 miles

east of Okahumpka and about two miles south of Lake Harris, in Sec. 13,

T, 20 S., R. 24 E. Exposed in the pit are from 12 to 30 feet of cross-bedded

kaolin-bearing quartz sands that contain flat, quartzite pebbles up to three

inches in length, and a small amount of mica. The kaolin content varies

considerably but averages about 25 percent. Data are presented on the

following samples.:

0-310 Commercially washed kaolin.

0-311 Gray white kaolin-bearing sand from top of stripped bank.

0-312 Gray kaolin-bearing sand from dredge hopper.

0-319 Red overburden sand.

0-320 White6crude kolin-bearing sand from water's edge.
0-460 Kaolin-bearing sand from auger boring located near the company's
"Boring # 20."

0-468 Commercially washed kaolin from drying shed rewashed in laboratory.

The chemical analyses of samples 0-319, 0-460, and 0-468, see Table I, and the

physical test data for all the samples, Table II, indicate the kaolin to be of

the same high quality as that produced in Putnam County. Although the kaolin

has a slightly inferior color, this characteristic is likely to be unnoticed

in bodies containing other clays.

2. The Florida China Clay Company (abandoned) property is situated two

miles east of Okahumpka, about 0.1 mile east of Falatlakaha Creek and south of

Florida Highway 46, in Sec. 13, T. 20 S., R. 24 E. The kaolin-bearing sand is

somewhat finer grained and contains fewer pebbles than that found on the Lake

County Clay Company's property to the East. The overburden averages less than

six feet and the white kaolin-bearing sand varies from 12 to 30 feet in

thickness.

Test data are presented on the following samples:

0-323 Crude material from the settling troughs.

0-324 Commercially washed kaolin,

0-342 White kaolinitic sand from auger boring located between mine and
plant.

0-461 White kaolinitic sand from auger boring located between mine and
plant.

0-462 White kaolinitic sand from auger boring located 100 yards northwest
of sample 0-461.

For chemical analyses of the composites of samples 0-461 and 0-462, see Table I:

for physical test data on all the samples except 0-461, see Table II.

In color, this kaolin is inferior to that found on the adjoining Lake

County Clay Company's property, nevertheless, it remains sufficiently good for

most ceramic purposes. The bonding strength is somewhat superior to, and

vitrification begins at a lower temperature than the kaolin from the adjoining

property. Although the kaolin was used successfully in the ceramic industry

for many years, all of the production from this mine during the last years of

its operation was purchased by the U. S. Rubber Corporation for rubber filler.

3. On the John Irwin property, situated on Florida Highway 450, 5.1 miles

west of Umatilla, in Sec. 5, T. 18 S., R. 26 E., a road materials pit exposes

kaolin-bearing sand. A chemical analysis of a washed sample from auger borings

made to the depth of 20 feet is included in Table I, sample 0-352, and physical

test data on this sample are given in Table II. These data indicate the qual-

ity of the kaolin to be equal to that found in Putnam County.

MARION COUNTY

Most of the reported occurrences of kaolin deposits in Marion County are

contained in the logs of borings made by the U. S. Army Engineers along several

proposed canal routes. These reported deposits are confined to the Lake Region

and "The Scrub", the sand hills east of the Lake Region. Incomplete data are

available on four localities.

1. On the property of M. B. Owens, located on the western edge of "The

Scrub", about 17 miles east of Ocala and just west of Long Lake in the NW( of

Sec. 14, T. 15 S., R. 24 E., tan to red kaolin-bearing sand is exposed in a

road material pit. The chemical analysis of a composite of sample 0-510 taken

from borings made in the floor of this pit is given in Table I. The kaolin is

off-color and has low strength.

2 and 3. Samples of kaolin, obtained from auger borings in two road

material pits located in the Ocala National Forest, were off-color and not

high grade. These pits are situated: (1) west of Lake Kerr in the NW4 of Sec.

20, T. 13 S., R. 25 E., and (2) about 9 miles south of Florida Highway 40 in

the SWA of Sec. 32, T. 16 S., R. 26 E.

4. The reported occurrence of white kaolin-bearing sand in the excava-

tions for the dam and power house three miles northeast of Oklawaha at Moss

Bluff, SW4 of Sec. 23, T. 16 S,, R. 24 E., has been confirmed. A sample from

the spoil bank yielded 25 percent kaolin when washed.

PASCO COUNTY

Deposits of kaolin-bearing sands in Pasco County have not been verified.

A test boring near the deposit reported by Bell southeast of Dade City en-

countered phosphatic clays. The chemical analysis of sample 0-438 which was

taken from an auger boring on the E. D. Hughes property about four miles south

of Dade City in the NW4 of Sec. 17, T. 25 S., R. 22 E., is given in Table I.

This county lies outside the area mapped as containing kaolin-bearing sands.

POLK COUNTY

Kaolin-bearing sands have been encountered in a number of wells in Polk

County. These sands extend throughout the Lake Region of the county but they

occur at depths varying from 50 to 200 feet below the surface. Because of the

thick overburden, such deposits have no commercial value and no test data are

available.

PUTNAM COUNTY

The Putnam County kaolins have been produced commercially for many years

and they serve as standards of comparison for kaolins from other sources. All

of the production comes from localities near Edgar and Crossley, however, numer-

ous occurrences of kaolin are known in the western portion of the county. The

greatest thickness of kaolin-bearing sand, 75 feet, occurs in the Edgar Dis-

trict. Here the average vertical section consists of 10 feet of soil and

yellow sand overburden, 10 feet of tan to red kaolin-bearing sand, and 20 to.45

feet of gray-white kaolin-bearing sand.

1. Bell, Olin G., "A preliminary report on the Clays of Florida."
Fla. Geol. Survey 15th Annual Report, 1922-1923.

8
The Edgar Plastic Kaolin Company property covers a large acreage on both

sides of the Atlantic Coast Line Railroad at Edgar, in Sec. 25, T. 10 S.,

R. 23 E. Coarse, micaceous, kaolin-bearing sands that contain quartz pebbles

up to three inches in length are exposed in the pit north of the railroad.

Data are presented on the following samples:

0-325 Overburden of the Edgar Plastic Kaolin Company pit.

0-326 White crude kaolin-bearing sand.

0-327 Commercially washed and dried kaolin.

0-464 Kaolin-bearing sand from auger boring located in abandoned portion
of pit.

0-469 Commercially washed and dried kaolin.

The high quality of this kaolin is indicated by the chemical analyses of

samples 0-325, 0-464, and 0-469, Table I, and by the physical test data for all

the above samples presented in Table II.

The United Clay Mines Corporation property consists of several hundred

acres lying north of the Atlantic Coast Line Railroad at Crossley Station, in

Sec. 27, T. 10 S., R. 23 E. The kaolin is recovered from a 10-foot bed of

relatively fine sand that contains little mica and very few pebbles. Three

grades are produced: (1) Putnam standard high quality clay, (2) Lakeland clay

which has a slight cream tint, and (3) Jasper, a slight salmon-colored clay.

The high quality of these clays is indicated by test data on the following

samples:

0-317 Red-stained kaolin-bearing overburden representing 18 feet.

0-318 Commercially washed and dried Lakeland brand.

0-357 Crude white kaolinitic sand from three 18-foot borings spaced in a
triangle with 1000-foot sides.

0-465 Crude white kaolinitic sand from auger boring located 150 feet north
of office.

0-470 Commercially washed and dried Putnam brand.

The chemical analyses of samples 0-317, 0-465, and 0-470, are given in Table I,

and the physical data on all the above samples in Table II.

The Foster Kaolin Company formerly produced kaolin from a pit located

about one mile south of Edgar, in Sec. 36, T. 10 S., R. 23 E. Although this

company is inactive and the pit abandoned, some data are presented to record

the high quality of kaolin found at this locality in the following samples:

0-435 White kaolin-bearing sand from a 10-foot section on the south side
of pit. A

0-436 Commercially washed and dried kaolin.

0-463 White kaolinitic sand from auger boring on south side of pit.

The chemical analysis for sample 0-463 is included in Table I, and the physical

test data for all the samples are given in Table II.

The Eccles property located on the east side of Redwater Lake, about two

miles south of McMeekin station and two and one-half miles southwest of

Crossley, comprises 270 acres in the SE1 of Sec. 5, the SW1 of Sec. 4, and the

NW of Sec. 9, T. 11 S., R. 23 E. The physical data determined on a sample

obtained from an auger boring on this undeveloped property are included in

Table II, sample 0-466. This boring encountered 14 feet of overburden and 10

feet of white kaolin-bearing sand which was sampled. The tests indicate the

kaolin to be near standard grade, however, it does have a slightly inferior

color and a little greater drying shrinkage than the commercial grades of

Putnam County kaolins.

SANTA ROSA COUNTY

White kaolin-bearing sand is exposed in the floor of a gully near the east

bank of Weaver Creek on the "Y. P. S." tract, seven miles southeast of Milton,

in Sec. 2, T. 1 S., R. 27 W. The chemical analysis, see Table I, sample 0-450,

and the physical data, Table II, indicate this kaolin to be similar to the Lake

County material.

WALTON COUNTY

Kaolin-bearing sands occur on the H. C.. Weller property which lies on

both sides of Florida Highway 285, about four miles south of U. S. Highway 90,

in the north half of Sec. 6, T. 2 N., R. 21 W. An auger boring located 200

yards southwest of the water tank on the west boundary line between the

Weller property and the Choctawhatchee National Forest, encountered white

kaolin-bearing sand from 12 feet below the surface to 30 feet. Although the

physical data determined on this sample, see Table II, sample 0-330, are simi-

lar to those of the Lake County kaolins, the kaolin yield of the sand is too

low to be considered for commercial development.

Two miles east of De Funiak Springs on U. S. Highway 90 white kaolinitic

sands were encountered in a well on the David R. Thompson property, Sec. 30,

T. 3 N., R. 18 W. Sample 0-413 consists of the kaolin-bearing sand recovered

from the bottom ; six feet of a 25-foot well and from an auger boring located

20 feet east of the well. Both the well and the auger boring bottomed in

kaolinitic sand. The chemical analysis of this kaolin is listed in Table I

under sample 0-413 and the physical data are given in Table II. The kaolin

has excellent color, high plasticity, low shrinkage and moderate strength. It

compares favorably with the Putnam County kaolins.

WASHINGTON COUNTY

Both Cooke1/and Vornon2 report kaolin-bearing sands at Chalk Bluff, 4.5

miles north of Vernon in Sec. 7, T. 3 N., R. 14 W. Here two beds of cream-

white clay, one, three feet in thickness, the other, four feet in thickness

1. Cooke, C. Wythe, "Geology of Florida".
Fla. Geol. Survey Bulletin No. 29, 1945.

2. Vernon, Robert 0., "Geology of Holmes and Washington counties, Florida".
Fla. Geol. Survey Bulletin 21, 1942,

11

are exposed, These clays are of the stoneware type. Data are presented on the

following samples:

0-399 Cream-white clay from lower (4-foot) bed exposed at base of outcrop.

0-418 Auger sample representing top 2 feet of lower (4-foot) bed.

0-522 Auger sample representing upper (3-fo6t) clay bed.

Chemical analysis of samples 0-399 and 0-522 are given in Table I, and physical

data determined for samples 0-399 and 0-I18 are included in Table II.

S .. .

S. A -

Table 1. Chemical Analyses of Florida Plastic Kaolins and Clays
(Downs Schaaf analyst)

County CLAY JACKSON LAKE

Fore- Seale Florida China Irvin
Locality most Prop- Lake County Clay Clay Corpora- Prop-
_Prop,' ertyy Comav tion erty
Crude Crude Over- Crude Lake Crude Crude Crude
Material White White burden White Brand White White White
Sample 0-467 0-400 0-319 0-460 0-468 0-461 0-462 0-352
__ne^- ----- ----------- ------
SiO2 46.10 47.82 42.50 46.31 46.22 46.81 45.19 46.83
A1203 37.81 36.08 36.56 37.63 37.11 31.65 37.61 37.43
Fe203 0.49 0.65 2.90 0.41 0.35 0.11 0.29 0.10
FeO 0.21 0.22 0.11 0.23 0.22 0.07 0,28 0.21

MgO 0.08 0.09 0.27 0.08 0.10 0.68. 0.11 0.12
CaO 0.35 0.35 0.77 0.34 0,59 1.28 0.50 0.38
Na20 trace 0.01 trace trace trace trace trace trace
K20 0.16 0.29 0.07 0.11 0.14 0.29 0.08 0.15

H20 0.98 1.01 1.83 1.08 1.50 5.81 1.53 1.10
H20 + 13.25 12.55 13.50 13.11 12.92 11.01 13.20 13.01
C02 0.37 0.38 0.40 0.34 0.41 0.56 0.36 0.38
Ti02 0.23 0.64 0.77 0.47 0.36 0.74 0.70 0.22

ZrO2 trace trace trace trace trace trace trace trace
P205 0.08 0.11 0.35 0.14 0.28 1.10 0.32 0.11
SO3 0.01 0.05 0.18 0.02 0.01 0.03 0.05 0.07
S (FeS2) trace trace trace trace trace trace trace trace

Cr203 none none none none none none none none
V203 none none none none none none none none
Hn 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.01
BaU none none none none none none none none

C(organic) 0.07 0.02 0.07 0.01 0.08 0.03 0.01 0.08

TOTAL 100.20 100.28 100.29 100.29 100.30 100.19 100.24 100.20

Trace indicates quantities less than 0.005 percent.

13

MARION PASCO PU T N AM.

Owene Hughes e. Foster
Prop- Prop- Edgar Plastic-Kaolin United Clay.Mines Kaolin
erty erty company Corp6ration Mine
Crude Fhoephatic Over- Crude E.P.K. Over- Crude : Putnam Crude
White Clay burden White Brand burden White Brand White
0-510 0-438 0-325 0-464 0-469 0-317 0-465 0-470 0-463

46.44 21,42 44.99 47.70 45.8.. 43.34-.. 47.21 ,46.04 46.80
37.04 29.10 37.21 36.88 36.50 37.40. 37.55 .37.98 37.19
0.14 4.44 0.34 0.21 0.40 0.95, 0.11 0.09 0.50
0.14 0.04 0.22. 0.24 0.22 .0.05.. 0.22 0.20 0.21
0.08 0.06 0.09 0.11 0.08 0.05 0.08 0.08 0.09.
0.57 5.25 0.60 0,36 0.81 0.60 0.32 0.36 0.36
0.01 0.79 trace trace trace trace trace .trace trace
0.05 0.40 0.07 0.15 0.22 0.07 0.08 0.20 0.10

2.00 1.68 2.30 0..93 2.20 2.54 0.98 1.41 1.11
12.66 14.80 12.90 12.80 12.75 13.77 13.10 13.17 13.03
0,53 0.68 0.50 0.38 0.39 0.38 0.33 0.38 0.37 -
0.32 1.05 0.55 0.41 0.43 0.65 0.18 0.15 0.35

trace trace trace trace 0.015 trace trace trace trace
0.07 20.10 0.18. 0.11 0.38 0.18 0.09 0.08 0.15
0.03 0.04 0.05 0,01 0.02 0.05 0.01 0.04 0.02
0.01 trace trace trace trace trace trace trace trace

none none none none none none none none none
none none none none none none none none none
0.02 0,01 0.02 0,01 0.01 0.01 0.01 0.01 0.01
none. none none none none none none none none

0.01 0.01 0.02 0,,2 0.08 0.01 0. 0.05 0.01

100.12 99.87 100,04 100,32 100.315 100.05 100.31 100.24 100.30

14
Table 1.

continued

County SANTA WALTON WASHINGTON
ROSA

Locality YP.S. Thompson Chalk Hill
Tract Property
SCude Crude Lover Upper
Material White White Clay Clay
ample
Number 0-450 0-413 0-399 0-522

Si02 45.95 47.50 44.84 .44.01
A1203 37.55 374.9 37.56 38.10
FPe3 0.28 0.20 0.88 ..57
Fe 0.14. 0.?2 0.25 0.25

Mg0 0.04 0.Q8 0.10 0.14
CaO 0.48 0.35 0.36 0.48
NaO 0.01 0.01 0.01 0.04
K2 0.07 0.10 0.28 0.22

H 0 1.81 0.93 1.23 1.11
H 0 13.01 12.97 13.07 .13.40
CO 0.34 0.35 0.37 .0.43
TiX 0.25 0.25 1.07 .1.20

ZrO2 trace trace trace trace
P205 0.11 0.12 0.15 0.15
S05 0.14 0.01 0.04 0.03
S SFeS2) trace trace trace trace

Cr2C none none none none
V2 none none none none
n0.01 0.01 Q.01 0.02
BaO none none none none

C(organic) 0,01 .. 0.01 0. 01
TOTAL 100.20 100.30 100,23 100.16

Trace indicates quantities less than 0.005 percent.

15
Table 2. Physical and Ceramic Data of Florida Plastic Kaolins and Clays
(Frank Westendick analyst)

County CLAY JACKSON
Seale
Locality Foremost Property Prop-
erty
Crude Crude Washed Crude Crude Washed
Material White White Kaolin White White Kaolin
Samle Number 0-353 0-354 0-355 0-467 0-400 0-310
Screen analysis
+35 mesh 27.0 53.0 0 24.6 14.8 0
-35 100 55.4 32.6 0 60.6 58.3 0
-100 + 200 4.4 2.0 3.9 2.2 7.8 0.41
% Mica 0.1 0.5 0.1 0.3 0.5 0
% Kaolin 13.1 11.9 96.0 12.1 18.6 99.6
Forming and drying
Water of plasticity 41.8 37.8 45.4 43.8 43.3 46,4
Shrinkage
Volume 21.4 18.3 22.4 21.0 17.3 21.0
Linear (CPlc.) 7,7 6.5 8.1 7.6 6.1 7.5
Linear (Meas.) 7.0 5.7 70c 6.9 5.7 6.7
Washed color white white wne white white white
Slaking time (Min.) 3.0 4.0 6.0 4.5 16 8.5
Transverse strength 245 290 310 296 290 305
Firing behavior
ignition loss
Cone 010 (950C) 13.9 14.2 15.1 14.7 13.0 13.6
Cone 05 (1050C) 13.9 14.3 15.0 14.5 13.3 13.7
Total shrinkage
Volume
Cone 010 (950*C) 30.9 29.2 31.7 30.4 25.1 29.6
Cone 05 (1050*C) 31.3 29.2 32.5 32.3 26.3 37.9
Cone 1 (1150*C) 31.3 30.4 39.3 38.1 26.8 38.7
Cone 7 (1270C) 44.4 39.9 47.1 47.4 42,0 54.7
Cone 10 (1330*C) 50.6 47.7 53.2 53.9 43.9 56.8
Cone 15 (1433*C) 57.2 54.7 57.5 55.0 55.6 60.5
Linear (Calc.)
Cone 010 11.6 10.9 11.9 11.4 9.2 11.0
Cuno 05 11.4 10.9 12.3 12.2 9.6 14.6
C nd 1 11.8 31.2 15.3 14.7 9.8 15.0
Cone 7 17.8 15,6 19.1 19.3 16.6 23.2
Cone 10 21.0 19.5 22.4 22.9 18.0 24.3
Cone 15 24.6 23.2 24.8 23.3 23,6 26.4
Absorption
Cone 010 28.5 30.2 32.3 31.8 34.7 32.1
Cone 05 28.1 28.7 31.0 30.6 34.1 26.6
Cone 1 27.3 28.0 19.1 23.1 33.8 26.3
Cone 7 18.5 23.3 15.9 16,2 20.0 10.2
Cone 10 12.4 17.2 9.2 10.2 16,4 8.1
Cone 15 5.0 5.2 6.7 7.7 5.4 1.0
Apparent porosity
Cone 010 47.3 47.0 47.6 47.1 48.9 46,2
Cone 05 46.6 46.9 47.2 46.6 48.7 43.0
Cone 1 43.1 43.6 38.1 39.9 48.9 43.0
Cone 7 34.8 39.5 31.2 31.4 36.2 22.7
Cone 10 26.2 34.7 21.0 21.9 31.3 .19.0
Cone 15 13.4 12.7 15.6 17.6 12.9 4,.
Color light
Cone 010 white white cream white ?aite a
Cone 05 white white white white white white
Cone 1 white white white white white w
Cone 7 white white white white white 0
Cone 10 white white white white
Cone 15 white white ca w white
Transverse strength
Cone 010 210 370 240 250 260 1
Cone 05 -
Cone 1 425 490 400 440 400 4
Cone 7 1980 2480 2100 2140 2160
Cone 10 2710 3020 2690 2860 2830
Cone 15 2980 3210 3140 3290 2950

el hard at cone 3 3 2 2.
?imtria3 Con3 3v 3333322 *.
Z v

LAKE

Lake County Clay Company Florida China Clay Corporation

Crude .Gray Over- Crude Crude Lake Crude Washed Crude Crude.
White Crude burden .'White White Brand White Kaolin White W'hite
0-311 0-6312 0.319 0-320 046 -68 0-323 0-324 0-342 0-462"

27.5
41.4
2.3
0.30
28.5

38.8 37.9

* 18.5
6.6
6.0
white
8
235

* 9.6
63.0
2.1
0.01
25.3

11.2
40.0
4.4
0.20
44.4

20.9
47.6
6.5
2.0
22.9

38.0 37.5 45.6 43.4

17.0 18.7 19.4 23.2
6.2 6.7 6.9 8.4
5.5 6.0 6.0 7.7
red white white white
'27 14 9.1 -
320 270 255

16.6
5.9
5.0
white
7
310

14.6
14.4

26.8
27.2
44.0
45.7
49.8
56.4

9.8
1040
17.6
18.4
20.6
24.1

32.0
30.8
29.2
13.2
9.1
0.8

46.3
45.9
45.1
30.1
11.7
3.2

white
white
;white
white
white

l2 0

purp e

13.6
13.9

24.3
.28.8
28.8
51.9
52i6
57.2

'8,8
10.7
10.7
21.6
22,0
24.6

28.0
26.7
25.8
9.4
.3.9
0.4

42.3
42.7
41.6
22.2
6.8
-1.8

white
white
white
white

slate

180
200
-350
2290
'3060

14.5
14.3

27.4
29.2
31.7
50.4
52.3
57.8

10,1
10.9
12,0
20,8
22.0
24.9

35.6
34.1
32,1
13.3
11.2
5.3

50.0
49.0
48.1
27.3
24.0
12.9

white
white'
white
white
white

220

460
2870
3570
3510

28 .-8
34.2
33.7
44.4
53.5
62.1

10.7
13.0
12,8
17,8
22.5
27.3

33.1
33;5
29;9
20,3
11.-5
0.6

47.3
46.;2
45;9
37.0
30.0
2.3
light
cream
white
white
white
white
slate

-4

7.8
30.6
20.8
0.1
.40.7

45.1'

18.5
6.6
6.0
white
12
310

1.1

98.9

11.8
51.3
12.3
0.7
23.7

15.6
38.4
17.6
2.5
25.8

41.4 45.0 43.0

ZU.6
7.2
6.7

14
380

-6.8
6.0

310

22. 9
8.2
7.3
white
10.9
355

14.2 15.1 15.1 15.5
14.3 15.4 15.0 15.9

29.0
33.7
44.0
46.9
55.5
56.5

10.8
12.8
17.6
19.0
23.6
24.2

35.4
33.6
29.2
15.5
7.0
3.4

50.1
49.0
45.1
32.1
16.9
7.2

white
white
white
white

slate

30.9
32.5
34.6
58.4
59.7
59.7

11.6
12.3
13.2
25.3
26.0
26.0

30.2
30.0
22.6
11.8
4.5
3.5

45.9
45.0
38.9
27.7
11.0
5.1

pink

purple
p'rple
slate
green
290

1710
3130
320
3980

30.9
36.2
41.3
49.8
54.7
60.5

11.6
13.9
16.1
20.6
23.2
26.4

33.6
31.6
13.2
11.6
9.5
3.2

48.6
48.2
28.4
24.0
21.0
9.4

white
white
white
white
cream
white
slate

270

1650
3150
3890
4160 .

31.4
33.4
46.1
56.0
58.6
60.8

11.8
12.6
18.9
24.0
25.5
26.7

32.7
31.8
19.1
7.1
5.8
3.8

* 14.3 13.1
14.5 13.5

24.7 30.0
26.3 30.6
26.8 '31.2
* 342 51.9
46.9 57.0
54.3

9.0 11.2
9.6 11.5
9.8 11,8
13.0 21.6
19.0 24.6
23.0 -

30.6 31.6
27.8 30.1
27.9 22.3
22.6 8.9
12.9 4.1
0.8 -

45.8 45.8
43.0 45.0
43.2 -39.1
38.7 18.0
27.1 5.6
3.4 -

white 1ht
white t
white Re
white
white 9an
w t_ -_

1.2.'- ---

S4 .4 : 2
, .33s._? ''33 ..-L ,3A.Jl..:^34:`

18.7
47.6
7.3
0.99
26.3

48.2
48.5
33.7
16.0
14.4
9.7

white
white
white

Se
purple
340

1605
3195
3985
4525

0,
,. :, .

& ,

%.

It'.< ;* .<-'- :-I <
,,.. *^;, .'. -<,-.

1 T'

~rrr~r-kr~*m~r~i?*ku~wa'~*6'- ""~1,.

'

-

;,:#

17
Table

County LAKE P U T N AM
cont'd_
Irvin"
Locality Prop- Edgar Plastic Kaolin Company
erty
Material Crude Over- Crude Washed Crude E.P. K.
SWlh.te burden White Kaolin White Brand
S%1ple 0-352 0-0-3-36 0-327 0-464 0-469

Screen analysis
*35 meuh
-35 +100
-100 +200
% Hica
% Kaolin
Forming and drying
4ater of plasticity
Shrinkage
Voluwiu
Linear (Calc.)
Linear (Meas.)
Washed color
Slaking time (Min.)
Trahsverse strength
Firing behavior
ignition loss
Cone 010 (9500C)
Cone 05 (1050"C)
Total shrinkage
Volume
Cone 010 (950*C)
Cone 05 (10500C)
C6ne 1 (11500C)
Cone 7 (12'70C)
Cone 10 (1330C)
Cone 15 (1430*C)
Linear (Calc.
C,.n, 010
C.in j 05
C ,n3 1
Cone 7
Cone 10
Con,' 15
Abuorotion
Cone 010
Cone 05
Cone 1
Cone 7
Cone 10
Cohe 15
Apparent porosity
Cone 010
Cone 05
Cone 1
Cone 7
Conei 10
Cone 15
Color
Cone 010
Cone 05
Cone 1
Cone 7
Cone 10
Cone 15
Tranaverse strength
Cone 010
Cone 05
Cone 1
Cone 7
Cone 10
Cone 15

Steele hard at cone
Pwrartria Can Eouiv.1

22.2
57,7
6.2
0.4
13.5

45.4

17.5
6.2
5.2
white
5.5
250

13.7
13.9

25.2
28.0
2,,8
42,6
50.6
55.2

9.2
10.4
10.6
17.0
21,0
23.5

:35.6
33.0.
31. 1
19.7.
13.0.
7.6

49.2
47.4
46.8
37.6.
27.8
16.2

white
white
white
white
white
white

235
-
500

2040

32.1
42.1
1.5
0.2
24.1

13.6
49.9
,6.9
.2.0
27.6

36.2 38.4

17..4
6..2
5.7
tan
12.0
210

15.1
15.3

30.5
31.1
36.2
40.5
54.3
58.4

11.4
11.7
13.9
15.9
23.0
25.3

31.6
31.0
26.0
18.6
6.0
3.2

46.1
46.0
42.6
32.4
18.9
8.1
light
ll!

Ket

purple
120
145
620
2170
2860

16.9
.6.0
5.5
white
7.0
280

1.1

98.9

30.0
* 39.5
* 9.1
S1.1
* 20.3

40.5 -42.7

19.4
. 7.0
. 6.2
white
9.5
250

14.1 14.2
14.4 14.6

25.9
28.0
28.0
39.1
44.4
54.3

9.5
10.4
10.4
15.,2
17,8
23.0

30.6
30.1
28.3
18.5
14,0
6.4

46.6
46.8
44.5
33.7
28.1
15.3

white
white
white
white
white
white

230
310 *
650
2200
2670
3080

25.5
30.0
30.5
45.3
49.4
55.1

9.3
11.2
11.4
18.2
21.4
23.4

31.0
29.2
27.6
15.4
13.2
4.2

45.3
45.3
42.3
30.0
27.6
10.0

white
white
white
white
white
orea
white

210
285
570
2090
2590
2940

.19.4
7.0
S6.3
white
6.8
310

-14.7
15.0

-30.4
-31.9
39.5
. 45.2
-50.2
56.1

11.4
12,0
15.3
18.2
20.8
24.0

31.2
30.1
23.7
17.5
13.5
5.5

45.8
45.1
38.9
32.0
27.7
12.7

white
white
white
white
white

rea
340

580
2460
2900
3290

- .

1.3

S98.7

46.1 *

* 21.0
7.5
7.0
white
11.0
320

15.3
15.6

34.6
35.4
36.2
49.4
51.0
58.0

13.2
13.5
13.9
20.4
21.2
25.1

S27.4
27.0
26.2
13.7
*11.6
3.2

42.7
42.6
42.5
27.6
24.1
7.8

white
white
white
white -
white

210
390
790
2130
... 940 .
*3260 K0

4 4 j,* 4,
11 j -i:14+ ) J 33*-

continued

h

. ItL I P '

~-- --~~-----Y..~--L-- --~_~-__i ~CC .-- -~il C-~-Y

. .. .

,

PUTNM continued

Eccles
United Clay Mines Corporation Foster Kaolin Company Prop-
_____erty
Over- -Lakeland Crude Crude Putnam Crude Washed Crude Crude
burden Brand White White Brand White Kaolin White White
S0-317 0318. 057 0-465 0-470 0-435 0-36 0-463 0-406

16.8
63.2
2.2
0.2
17.6

42.9

18.7
6.7
6.2
white
4
265

12.5
67.3
1.9
0.6
17.8

41.3

17.6
6.3
5.7
white
5.2
235

18.5
55.8
1.6'
0.1'
24.0

40.5

20.2
7.2
6.5
red
9
280

15.1
15.3

30.6
35.0
35.4'
42.0
53.9

11.5
13.4
13.5'
16.5
22.7

33.9
28.8'
28.4
22.9
8.7

23.9
29.2
30.0
37.4
41.2
52.3

8.7
10.9
11.2
14.4
16.2
21.8

35.3
32.8
32.4
23.0
19.6
10.0

49.8
49.4
49.4
39.4
35.7
22.6

n white. white
white white
white .white
white white
White white
white white

340 200

360 : 230
660 ? 460
H 636 1789
.h4041 ~ 24.
k' 1.9. r

28.6
29.1
31.8
41.7
45.9
52.6

10.6
10o8
12,0
16.5
18.6
22.1

32.9
31.2
30.2
20.5
16.5
8.6

47.8
46.9
45.6
36.4
31.3
18.7

white
white
white
white
white
white

210

505

276 I
1 1 .

0
0
0.9
0
99.1

49.0

21.1
7.5
7.0
320am
whte
320

0
0
1.2
'0
98.8

46.8

21.4
7.7
7.2
white
6
230

15.3
15.5

28.8
28.4
29.6
42.8
43.2
55.6

10.7
10.5
11.0
17.0
17.2
23.6

32.6
31.4
30.6
21.6
19.6
9.0

46.2
44.3
44.4
38.1
34.8
20.4

white
white
white
white
white
white

260

290

2200
2940,

0
0
1.9
0
98.1

42.6

22.2
8.0
7.2
cream
white
9.5
280

24.3
54.7
3.0
1.1
16.8

36.8

19.2
6.8
6.2
white
7.9
305

20.9
53.6
4.5
0.8
20.2

38.2

21.0
6.8
6.2
cream
whit e
7
320

15.1
15.3

28.0
30.6
33.5
39.5
51.6
54.0

10.4
11.4
12.7
15.4
21.5
22.8

27.5
27.3
27.2
20.2
8.9
3.6

42.8
42.8
42.2
36.1
18.7
9.0

white
white
white
:white
white

330

520 .

So0-;.
I z '

28.4
31,7
32.5
35.8
53.5
58.8

10.5
11.9
12.3
13.7
22.5
25.5

30.7
29.5
29.0
25.9
9.0
3.0

47.1
47.5
45.6
42.9
21.1
8.0

white
white
white
white
white

290

460

2420
3P60

28.1
30.6
33.5
39.6
51.6
54.0

10.4
11.5
12.8
15.4
21,5
22.8

28.9
26.9
24.1
17,3
7.1
3.9

44.1
42.7
39.9
31.6
16.1
9.5

white
white
white
white
white

3<

25!
32(

., r .-A ,.,.4
o i', '" t if. 6. "

12.2
67.4
4.6
0.6
15.2

40.0

21.0
7.6
7.0
white
7.3
255

15.1
15.2

32.9
34.6
43.0
51.4
53.7
56.1

12.5
13.2
17.2
21.5
22.5
24.0

28.0
26.3
19.3
10.1
7.1
5.5

44.4
42.4
34.7
21.0
15.4
12.6

C eam
cream
white

wore
while

Ju0 -

30
85 3090
3 : *; *'.o* i
- -j0 ^'r 6-*r
:;it: -m- *- '- j a .r
^^^J^i,

15.3 15.1
15.7 15.3

14.4 13.6 14.8
14.6 14,2 14.9

47.1
44.1
42.7
38.90
17.9

29.2
34.6
34.2
36.6
49.8
58.0

10.9.
13.2
13.0
14.1
20.6
25.1

33.3
28.4
28.4
25.1
15.9
3.8

46.4
42.8
42.5
39.0
31.2
8.8

#,r,

Table 2. continued

sq AmTA W T W* ..T -
County SANTA WA

Locality P.S Thpson Chalk Hil
-_Tract eo- Property
erty....
Material Crude Crude .Crude Lower Upper
iaterl iteWhite white White Clay Clay
Samle0-45 0-330 0-43 0-399 0-418

ocruen analysis
+35 mesh
-35 +100
-100 +200
% Mica
% Kaolin
Forming and'drying
Water of plasticity
Shrinkage
Volume
Linear (Calc.)
Linear (Meas.)
Washed color
Slaking time (Min.)
Transverse strength
Firing behavior
Ignition loss
Cone 010 (950*C)
Cune 05 (1050C0)
Total shrinkage
Volume
Cone 010 (950C)
Cone 05 (1050C).
'Cone 1 (11500C)
Conj 7 (12700C)'
Cone 10 (13300C)
Cone 15 (14300C)
L.near (Calc.)
Cone 010
Cone 05
Cone 1'
ond 7
Cone 10
Cone 15
Absorption
Cone 010
Cone 05
Cone 1
Cone 7
Cone 10
Cone 15
Apparent porosity
Cone 010
Cone 05
Cone 1
Cone 7
Cone 10
Cone 15
Cone 010
Cone 05
Cone 1
Cone 7
Cone 10
Cone 15
Transverse strength
Cone 010
Cone 05
Cone 1
Cone 7
Cone 10
Cone 15

Steel hard at cone
Py -mtrrio Cone Eauiv.

35.1
56.2
1.1

8.2

49.4

24.7
9.0
.8.5
white
8
190

14.0
14.3

30.0
32.9
34.2
41.2
55.1
57.6

11.2
12.4
13.0
16.2
23.4
24.9

35.2
34.4
33.6
25.5
12.5
3.7

50.0
50,3
50.0
42..6
27.4
10.0
white
white
white
white
white
purple
white
210

340
1640
1880

54.9
36.6
1.6
6 "
6.9

48,2

19.4
7.0
6.2
white
16
170

14.6
14.7

29. .4
32.1
32.5
53.1
56.4
60.9

10.5
12.1
12.3
22.3
24.1
26.7

35.1
-30.1
.30.1
13.5
8.4
3.7

48.8
44.7
44.5
28.0
18.8
.9.4

white
white
white
white
light
purple
220

380

1880

54.0
32.3
4.5

12.7

51.8

18.3
6.5
6.0
white
14
190

13.9
14.3

28.0
30.9
30.9
46.5
50.6
60.1

10.4
11.6
11.6
18.8
21.0
26.2

36.8
35.6
35.2
19.8
15.5
5.1

49.1
* 49.9
49.4
35.4
30.0
13.3
white
white
white
white
white
light
purple
210

320

1640

0
1.5
2.9

95.6*

50.0

22.6
8.2
7;5

22
140

13.2
13.'5

27.6
30.5
35.4
50.6
59.3
62.6

10.2
11.4
13.5
21.0
25.8
27.5

33.4
30.2
2q.0
15.6
5.0
3.4

45.4
42.6
41.9
30.8
11.4 '
8.7
flesh
flesh
white
cream
mrte
brown
green
220

450
1860
2630 :"
._ 2890 C

0
1.7
3.4

94.9*

43.3

18.3
6.5
6.0

120

13.0
13.6

24.3
28.8
29.6
39.9
58.8
58.8

8.8
10.7
11.0
15.6
25.5
25.5.

35.6
30.9
30.3
17.1
7.1
6.2

50.0
46.2
45.5
31.6
18.0
16,0
flean-
flesh:..
white'
cream ,
p!'tpe 4;"
brown. ;;
green |

.-

"- *: I ,

I -; I.--- -. --

4
14

4
ii9 *

SStoneware clay My kaolin

9 ii'

1 I

--- -

PART II

THE CLAYS OF NORTHERN FLORIDA

GENERAL STATEMENT

This report deals primarily with the determination of the characteristics

of common clays, in regard to their suitability for use in the manufacture of

ordinary heavy clay products, chiefly common brick, face brick, and various

kinds of tile. The area from which samples were taken is designated as North-

ern Florida and includes that portion of the State which lies north and west

of the southern limits of Dixie, Gilchrist, Alachua, Putnam and Flagler

counties.

The samples were collected in 1928 and 1929 by James H. C. Martens and

were analyzed by Dr. Martens in the clay testing laboratory then operated by

the Florida Geological Survey. Standard procedures were used in the determi-

nation of the data listed in Table 3: Physical and Firing Properties of Florida

Clays, Dr. Martens found it necessary to classify the slaking properties as:

"fast", "medium", "slow", and "very slow", rather than to use standard data

form because consistent results could not be obtained and in some cases the

clay cubes remained almost intact after more than two months immersion in water.

The clay localities reported in Dr. Martens' manuscript are here grouped

according to counties and the counties are arranged in alphabetical order. The

sample numbers used in the description of each deposit are the same as those

listed in Table 3.

Description of Deposits by Counties

ALACHUA COUNTY

Campville

Location of pit: One-half mile north of Campville on the Seaboard Air
Line Railroad at the abandoned plant of the Campville
Brick Company,

Section exposed:

Soil, loamy sand
Clay, very sandy, light gray
Sand, fine, white
Clay, mottled gray and red

2 feet
6 feet
3 feet
5 feet

Samples collected and tested:

0-216 Mottled gray and red clay representing bed 4.
0-217 Clay and sand representing beds 2, 3, and 4.

Utilization: Common brick; medium refractory brick.

Hawthorn

Location of exposure:

One mile north of Hawthorn and one-quarter mile
east of the Seaboard Air Line Railroad on the
H. D. Fry farm.

Section exposed: Four feet of red clay in field.

Sample collected and tested:

0-218 Red clay representing the four foot bed.

Utilization: A poor grade of common brick could be made from this clay.

BAY COUNTY

Panama City

Location of pit:

Section exposed:

On the farm of Jacob Godert, eleven miles east of
Panama City and 1,000 feet north of new road to
Wewahitchka.

Overburden, grayish yellow sand
Light gray clayey sand
Light gray clay

3 feet
2 feet

Samples collected and tested:

0-154 Light gray clay, bed 3.
0-265 Mixture of two parts light gray clay, bed 3, with
three parts of gray clayey sand, bed 2.

Utilization: Suitable for face brick.

CALHOUN COUNTY

Blountstown

Location of plant and pit: Southeast edge of Blountstown, at the Holmes

.22

Brothers Brick Yard.

Section exposed:

Soil overburden
Alluvial clay

6 inches
4 to 9 feet

Sample collected and tested:

0-103 Alluvial clay, bed 2.

Utilization: Common brick; may be suitable for pottery and tile.

Darling Slide

Location of exposure:

At Darling Slide on the left bank
River, southwest of Blountstown.

of Chipola

Section exposed:

1. Sand, grayish yellow 6 feet
2. Sand, clayey, orange 8 feet
3. Sloping bank, no exposure 8 feet
4. Clay, very sandy, yellow 4 feet
5. Clay, very sandy, dark gray 4 feet
6. Shell marl 20 feet

Samples collected and tested:

0-104 Dark gray clay, bed 5.
0-105 Yellow clay, bed 4.

UTILIZATION: Useless for the manufacture of any burned clay product.

CLAY COUNTY

Green Cove Springs

Location: North edge of Green Cove Springs at the
former Clay County Steam Brick Company.

abandoned pit of the

Section exposed:

1. Soil, fine, light gray sand
2. Clay, mottled gray and brown
3. Sand, fine, clayey, mostly
reddish brown
4. Sand, fine, nearly white

1 foot 3 inches
4 feet

3 feet
2 feet

Sampse collected and tested:

0-201 Clay and clayey sand representing beds 2 and 3.
0-229 Clay, bed 2.

Utilization: A poor quality of common brick.

Russell

Location of pit:

Section exposed:

One mile northeast of Russell Station near small branch
of Black Creek at site of former Russell Brick and Tile
Company.

Top soil overburden
Clay, grayish yellow

1 foot
6+ feet

Sample collected and tested:

0-202 Grayish yellow clay, bed 2.

Utilization

Middleburg

Location:

Suitable for face brick, drain tile, and an excellent
grade ef common brick.

An abandoned brick plant is located on the left bank of Black
Creek, two miles northeast of Middleburg and the abandoned pit
is about 0.3 mile north of the barge landing.

Section exposed:

Soil, fine, gray sand
Clay, brown, sandy
Clay, gray and brown, very tough

8 inches
2 feet
5 feet

Sample collected and tested:

0-208 Gray and brown clay representing beds 2 and 3.

Reserves: Clay is exposed throughout sections 1 and 2, T. 5 S., R. 24 E.,
on the highway from Doctors Inlet to Middleburg. The top of
the clay is about 20 feet above Black Creek and little or no
overburden is present.

Utilization: This clay is suitable for face brick, common brick, drain
tile and hollow ware.

DUVAL COUNTY

Dixton

Location of plant and pit:

On the Atlantic Coast Line Railway at Dixton,
near the west side of Doctors Lake. The pit
of the abandoned Gamble and Stockton Company
is situated between the railroad and the Lake.

Section exposed:

Soil
Clay, brown, sandy
Clay, gray or blue-gray, tough

Thin
3 to 4 feet
8 feet

Sample collected and tested:

0-205 Gray, blue-gray and brown clay representing beds 2 and 3.

Utilization:

The Gamble and Stockton Company formerly produced face brick
and common brick. The clay is also suitable for hollow
block and drain tile.

ESCAMBIA COUNTY

Molino

(1) Location of plant and pith On the Louisville and Nashville Railroad,
about one mile north of Molino at the site
of the former Dolores Brick Company.

Section exposed:

Soil, sandy and pebbly loam
Clay, reddish brown, friable
Clay, mottled brown, yellow and
gray, tough
Sand
Clay, gray mottled with brown
tough

1 foot
3 feet

5 to 6 feet
8 inches

4+ feet

Samples collected and tested:

0-189 Clay, gray mottled with brown, bed 5.
0-190 Clay representing average of beds 2, 3, 4, and 5,

Utilization:

The Molino clay is suitable for hollow buidling tile and
drain tile as well as common and face brick.

(2) Location of plant and pit: On the Louisville and Nashville Railroad
about two miles north of Molino at site
of former Build-with-Brick Company.
Section exposed:

Soil, gray loam
Clay, sandy, yellow and red
Clay, gray mottled with light
brown, yellow and red

6 inches
3 feet

14+ feet

Sample collected and tested:

0-170 Clay representing beds 2 and 3

The Build-with-Brick Company manufactured common brick; the
clay is also suitable for face brick, hollow building tile
and drain tile.

Century

Location:

Road cut on U. S. Highway, adjoining the property of W. H.
Wiggins and one and onu-half miles south of Century.

Section exposed:

1. Sand, orange
2. Clay, mottled gray and brown

5 to 12 feet
6+ feet

Sample collected and tested:

0-175 Clay representing bed 2.

Utilization: Suitable for common brick, face brick and drain tile.

Pine Barren

(1) Location of deposit:

On the McMillan Mill Company property, 500 feet
northwest of Pine Barren Station.

Section exposed:

1. Soil, sandy loam with few
pebbles
2. Clay, mostly yellow
3. Cl.y, gray spotted with red

1 foot
3 feet
5+ feet

Samples collected and tested:

0-183 Gray, tough clay, bed 3.
0-184 Average of 8 feet of clay, beds 3 and 5.

Reserves:

In real extent and thickness the clay beds are adequate for
commercial development.

(2) Location of deposit:

On the McMillan Mill Company property, four
miles northwest of Pine Barren, clay exposed in
gully adjacent to road.

Section exposed:

Black muck
Sand, light gray, pdbbly
Clay, light gray

3 feet
4 feet
6+ feet

Sample collected and tested:

0-185 Light gray clay representing bed 3.

Utilization:

Fired at cone 010 the clay is suitable for light colored
face brick. Above cone 3 the porosity is reduced to nearly
zero and the color becomes very dark.

(3) Location of out: Road cut 2.8 miles north of Pine Barren Creek.

Section exposed:

1. Soil, loam
2. Clay, mottled gray, red and
yellow
3. Sand, fine, clayey, orange,
streaked with gray and yellow
4. Clay, tough and plastic, mottled
brown and light gray

1 foot

4 feet

3 feet

12+ feet

Samples collected and tested:

0-181
0-233

Clay and sand representing beds 2, 3, and 4
Tough, plastic clay representing bed 4.

Reserves: Ample an extensive deposit.

Utilization:

McKinnonville

Location:

Either the lower clay or the mixture is suitable for drain
tile and non-vitrified structural products.

Clay exposed in roadside gully near base of slope on east side
of Boggy Creek, 0,8 mile west of McKinnonville.

Section exposed:

Sand with quartz pebbles
Clay

2 to 4+feet
5 feet

Sample collected and tested:

0-176 Clay representing bed 2.

Utilization:

The clay has excellent working qualities and burns hard at
cone 010 for good common brick. It is also suitable for
face-brick.

Muscogee

Location:

Various localities in the vicinity of Muscogee. Two typical
exposures are located:

(1) On the hillside south of railway crossing 2 miles eastof Muscogee.

Section exposed:

Sand and orange clay with pebbles of sandstone
.Clay, plastic, gray, pink and yellow
Sand, clayey,.mottled gray, red and yellow
Sand, yellow, cross-bedded, limonitic at top

2 to 4.feet
31 feet
2 feet
3+ feet

Utilizationt

Sample collected and tested:

0-166 Plastic clay, bed 2.

(2) In out on Frieco Railway, 3 miles east of Mascogee.

Section exposed:

1. Orange sand containing limonitic concretions 3 feet
2. Laminated to thinly bedded clay and fine sand 7 feet

Sample collected and tested:

0-167 Clay and sand, bed 2.

Utilization:

These clays would make an excellent light-colored face
brick, however, the size of the individual deposits is
limited.

Yniestra:

Location of exposure: Road cut on the Scenic highway at Yniestra.

Section exposed:

Sand,
Clay,
Sand,
Sand,
Clay,
Clay,
Sand,

brown, loose
red and gray
yellow, coarse
gray, clayey
gray, sandy
very plastic, gray and pink
red, clayey

4 feet
4 feet
1 foot
3 feet
6 feet
3 feet
4 feet

Samples collected and tested:

0-165 Plastic clay, bed 6.
0-230 Clay and sand, a mixture of beds 2, 4,

5, and 6.

Utilization:

The mixture is suitable for a good light colored face brick.
The gray plastic clay probably could be used for pottery,
however, the overburden is excessive at this locality for
mining this clay.

McMillan

Location of deposit:

The old workings of abandoned brick plant extend
about 1500 feet along the east side of the Louis-
ville and Nashville Railroad south of Pine Barren
Station.

Section exposed:

Overburden, soil
Clay, sandy

1 foot
4 feet

Sample collected and tested:

0-186 Clay and soil representing beds 1 and 2.

Utilization: Suitable for a fair grade of common brick.

FLAGLER COUNTY

Bikes Prairie

Location of deposit:

At side of drainage ditch on Bikes Prairie 2,000
feet south of St. Josephs landing on East Coast
canal.

Section obtained by post hole auger:

1. Top soil, black, muckyclay
R. Clay, gray to cream, calcareous
3. Clay, gray, contains decayed
vegetation
4, Marine shells and sand

Sample collected and tested:

0-224 Clay representing bed 2.

1 foot
3 feet

8 inches
thickness not determined

Utilization:

Black Point

The high lime content of this clay
fired products.

makes it worthless for

Location of deposit:

Near Black Point, approximately 31 miles west-
southwest of Bunnell in the southern portion of
Sec. 17, T. 12 S., R. 30 E.

Section exposed:

1. Soil, black, mucky clay
2. Dark clay

6 inches
4 feet

Sample collected and tested:

0-225 Dark clay, bed 2.

Utilization:

Suitable for a fair quality of common brick, however, the
clay contains too much water to be worked satisfactorily.

Haw Creek

Location of deposit:

The clay is found
west of Bunnell.
trate the general

in vicinity of Haw Creek, south-
Two localities are given to illus-
characteristics of the deposits

(1) A clay exposure in a roadside ditch, 500 feet north of Haw Creek, one
mile east and 0.2 mile south of Haw Creek Church.

Section exposed:.

1i, Soil
2 c 2. Clay

Sample collected and tested:

0-223 Clay representing bed 2.

Utilization:

This clay contains no calcareous material and adequate re-
serves are indicated for commercial development. It is
suitable for common brick, hollow block and drain tile.

(2) West side of Middle Haw Creek, 7 miles southwest of DuPont.
abandoned brick plant.

Ed Roberts

Section exposed:

Gray loam
Sandy clay, gray with streaks
of yellow near top
Clay, gray, very plastic
Sand, fine, gray

6 inches

feet
feet
foot

Samples collected and tested:

0-226 Sandy clay, bed 2.
0-228 Clay representing beds 2 and 3.

Utilization:

The sandy clay was dug by hand and used to make common
brick. The mixture of plastic clay and sandy clay is
suitable for face brick, hollow block and drain tile as
well as common brick.

St. Johns Park

Location of deposit: The clay occurs below a thin soil overburden in the
field opposite the post office of St. Johns Park
and one-half mile east of the boat landing,

Section exposed:

Fine, sandy, clay loam
Clay

1 foot
41feet

Sample collected and tested:

0-222 Clay representing bed 2.

Utilization: Suitable for the manufacture of common brick.

GADSDEN COUNTY

Havana

Location of pit: At abandoned Tallahassee Pressed Brick Company plant

8 inches
6+ feet

30

,,.4.. adjacent to Georgia, Florida and Alabama Railroad on the
flood plain of the Ocklocknee River, Havana.

Section exposed: About five feet of alluvial clay overlain by six inches
of soil.

Samples collect and tested:

0-114 Clay from abandoned pit.
0-115 Clay from pit one-quarter mile west of abandoned plant.

Utilization: Formerly used to manufacture a good grade of common brick.

Quincy

(1) Location of pit: One mile north of Quincy on the property of Floridin
Company, Incorporated.

Samples collected and tested: (October, 1928)

0-153 Fuller's earth
0-152 Brown clay overburden 4 feet

Utilization: The analysis of fuller's earth is included for comparative
purposes. The overburden clay is suitable for common brick.

(2) Location: In road cut on west slope of the Little River valley, five
miles east of Quincy.

Section exposed:

1. Sand, brown, rather coarse 1 foot
2. Clay, weathered fuller's earth 2 feet
3. Clayey sand 2 feet
4. Pale-greenish clay containing
fine sand 3 feet

Sample collected and tested:

0-116 Clay and sandy clay representing beds 2, 3, and 4.

Utilization: The clay is suitable only for soft common brick.

(3) Location of deposit: Alluvial clay from valley flat of Little River,
five miles east of Quincy, near Georgia, Florida
and Alabama Railroad crossing.

Section exposed in river bank:

1. Top soil, silty loam 1 foot
2. Clay, very sandy 2.5 feet
3. Sand, fine with little clay 1.5 feet
4. Clay, tough, gray, with little
sand 2 feet

Sample collected and tested:

0-117 Average sample of beds 2, 3, and 4.

Utilization:

Not suitable for burned products because of the excessive
sand content and small quantity of uniform reserves.

Midway

Location of deposit: Midway,

Section in pit:

1. Soil and sand
2. Clay
3. Clayey sand with some marl
4. Fuller's earth

2 to 4 feet
8 feet
15 feet
10 feet

Sample collected and tested:

0-150 Light gray to yellowish, very fine grained clay,
representing bed 2.

Utilization:

River Junction

The clay has poor plasticity, excessive air shrinkage and a
tendency to crack on firing.

Location of deposit:

On flood plain of Apalachicola River, adjacent to
Louisville and Nashville Railway trestle crossing
Apalachicola River, about one mile west of River
Junction.

Section exposed in pit:

Clayey soil, dark brown
Clay, brown, silty
Clay, reddish silt
Sand, water-bearing

1 foot
3 feet
2 feet
Thickness unknown

Sample collected and tested:

0-140 Brown and reddish silty clay representing beds 2 and 3.

Utilization: Used by State owned brick plant to make common brick.

GULF COUNTY

Port St. Joe

Location of exposure:

In roadside ditch seven miles north of Port St.
Joe on Highway No. 6 and a few feet north of
the canal crossing.

Section exposed:

1. Yellowish-brown, clayey sand 2.5 feet
2. Clay, mottled gray and reddish,
sandy in upper part; bottom not
exposed 3 feet

Sample collected and tested:

0-118 Mottled gray and reddish clay representing bed 2.

Utilization: Suitable for manufacture of common brick.

Wewahitchka

Location of exposure: In a ditch on the roadside, 800 feet north of the
Lake Grove hunting and Fishing Club's club house
on their property at the south end of Dead Lake.

Section exposed:

1. Sandy loam 1.5 feet
2. Alluvial clay, mottled yellow
and red 2 feet

Sample collected and tested:

0-120 Mottled yellow and red clay, bed 2.

Utilization: Suitable for a fairly good grade of common brick.

HOLMES COUNTY

Argyle, four miles east of

Location of deposit: About four miles east of Argyle and one-quarter
mile downstream from Scott's Mill in a bluff on
the left bank of Sandy Creek.

Section exposed:

1. Sand, coarse, orange 2 to 25 feet
2. Sand, fine and clayey 12 f'et
3. Clay, dark gray to black 3 feet
4. Clay, gray, yellow and brown 3.5 feet
5. Sand, mostly fine grained 21 feet

Samples collected and tested:

0-137 Clay, bed 3.
0-138 Clay, bed 4.
0-231 Sand and clay, beds 2, 3, and 4.

Utilization: The mixture with sand, sample 0-231, is satisfactory for
common brick.

Ponce de Leo 3.3 miles north of

Location of exposure: About 3.3 miles north of Ponce de Leon in a
prospect pit near foot of hill.

Section exposed:

1. Red sand Minimum of 2 feet
2. Clay, grayish-yellow 6 feet

Sample collected and tested:

0-158 Grayish clay, bed 2.

Utilization: Has higher shrinkage than desirable but may be suitable for
good common brick or face brick,

Ponce de Leon, 4 miles west of

Location of exposure: In a gully just north of milepost 737 on the
Louisville and Nashville Railway.

Section exposed:

1. Sandy loam with few pebbles 1 foot
2. Fine, clayey sand, mostly red 5 feet
3. Clay, light gray and red 5 feet

Sample collected and tested:

0-197 Clay and clayey sand representing beds 2 and 3.

Utilization: The 10-foot section of clayey sand is suitable for common
brick.

JACKSON COUNTY

Cottondale

Location of pit: Three miles south of Cottondale on the Kynesville Road
at abandoned A. J. Barbour Brick Plant.

Section exposed:

1. Overburden top soil 1/2 foot
2. Gray clay 7 feet

Sample collected and tested:

0-109 Gray clay, bed 2.

Utilization: Suitable for nearly white to light cream-colored face brick
or common brick.

Marianna.

(1) Location of pit: About.two miles south of Marianna, on
Florida Industrial School for Boys,

property of

Section exposed:

1. Sand, grayish-orange
2. Sand, clayey, mottled gray,
yellow and red
3. Clay, sandy, mottled gray,
yellow and red
4. Clay, brown, with black
spots

1 foot

6 feet

5 feet

4 feet

Samples collected and tested:

0-237 Average of entire section,
beds 1, 2, 3, and 4.
0-121 Brown clay, bed 4.

Utilization:

(2) Location:

The mixture is not well suited for common brick and the
lower clay, bed 4, has too high shrinkage for any
burned products.

Four miles northwest of Marianna on property of Marianna
Limestone Products Company.

Section exposed:

Residual clay, above Ocala limestone.

Sample collected and tested:

0-122 Dark red (oxidized) and pale grayish-green, residual
clay.

Utilization: The 'clay has too high shrinkage to be of value

Location of exposure: Deep railway cut through hill north of Round Lake
Station.

Section exposed:

1. Sand, light gray
2. Sand, mottled red, yellow
and gray
3. Sand, orange, coaroe with
quart$ pebbles
4. Clay, pink, very plastic
5. Sand, light yellow to brown,
coarse
6. Sand, clayey, dard red to brown
7. Clay, mottled yellow and grayish-
red, sandy but plastic
8. Sand, slightly clayey

3 feet

4 feet

5 to 7 feet
6 to 7 feet

2 feet
1 feet

2j feet
5 feet

Samples collected and tested:

0-123
0-241
0-242

Pink clay, bed 4.
Sand and clay mixture, beds 4, 5, 6, and 7.
Sand and clay mixture, beds 2, 3, 4, 5, 6, and 7.

Utilization: Soft, porous common brick.

JEFFERSON COUNTY

Wacissa

Location of deposit:

Log of test boring:

One and one-half miles east of Wacissa near milepost
822 on the Seaboard Air Line Railway (line abandoned)

Sand, light gray, fine grained
Clayey sand, brown, fine grained
Clay, mottled light gray and red,
containing fine sand
Sand, white, fine grained
Clay, crumbly, light gray
Water-bearing limestone

2 feet
1/2 foot

5 feet
1 foot
3 feet
Thickness unknown

Sample collected and tested

0-263 Clay and sand, beds 2, 3, 4, and 5, representing 91
feet of section,

Utilization: Rather porous common brick,

LEON COUNTY

Woodville

Location of pit: Clay pit for road material, eight miles south of
Tallahassee and three-quarter mile north of Woodville,
east side of highway.

Section exposed in auger boring:

1. Overburden, fine grain sand
grading into yellow sand at
depth 3 feet
2. Clayey sand, yellowish-brown 1 foot
3. Clayey sand, mottled red and
gray 2 feet
41 Clay, gray with spots of red,
yellow and brown, contains
some sand 6 feet

5. Clay, gray and yellow l feet
6. Limestone, water-bearing Thickness unknown

Sample collected and tested:

0-259 Clay and sand representing beds 2, 3, 4, and 5.

Utilization: Suitable for making common brick.

LIBERTY COUNTY

Alum Bluff

Location of deposit: Alum Bluff, approximately 3 miles north of Bristol.

(1) Section exposed: Seven-foot cut of brown clay resulting from the
weathering of the upper part of the shell-bearing
bed, north end of Alum Bluff.

Sample collected and tested:

0-100 Residual brown clay.

Utilization: Would make poor quality common brick.

(2) Section exposed: Sandy, silty clay above shell marl, 1/2 mile
downstream from north end of bluff.

Samples collected and tested:

0-101 Slightly weathered gray, sandy clay.
0-102 Unweathered, dark greenish-gray, sandy clay.

Utilization: No value, soft and friable when burned.

Bristol Landing

Location of deposit end abandoned plant: Near Bristol at Bristol Landing
on the Apalachicola River.

Section exposed;

The old pit and river bank exposes 5 feet of red and
gray clay with one foot or less of sandy, soil overburd- .
en.

Sample collected and tested:

0-141 Representative clay from alluvial deposit.

Utilization: Suitable for common brick, face brick and drain tile.

Estiffanulga

(1) Location of deposit:

Section exposed: Near t
of all

At Estiffanulga Landing on the Apalachicola
River, a bluff extends along the outside of a
large bend in the river for about one-half mile,

he top of this bluff is exposed from 5 to 10 feet
uvial clay.

Sample collected and tested:

0-143 Representative clay from upper clay layer at
Estiffanulga Bluff.

Utilization:

The clay has excellent working and drying properties and is
suitable for face brick,common brick, hollow block ware,
drain tile and red earthenware.

(2) Location of exposure: Along roadside 2.7 miles north of Estiffanulga
Landing and 8.4 miles south of Bristol.

Section exposed:

Thin soil overburden and 3 feet of alluvial clay. The
bottom of clay not exposed.

Sample collected and tested:

0-142 Representative sample from 3-foot exposure.

Utilization:

This clay is suitable for drain tile, face brick, and
common brick of excellent quality.

NASSAU COUNTY

Callahan

(1) Location of pit:

On property of former Georgia-Carolina Brick company
plant on the Seaboard Air Line Railroad near its
intersection with the Atlantic Coast Line, Callahan.

Section exposed in pit: The deposit worked is six to twenty feet thick
with only a foot of overburden. The ground water

level is only two or three feet below the surface
and it is necessary to pump water from the pit.

Sample collected and tested:

0-144 Clay from pit, probably more sandy than the average,

Utilization:

Common and face brick and suitable for common structural
materials where a vitrified product is not essential.

(2) Location of exposure: In roadside ditch two miles north of Callahan
on U.,S. Highway No. 1.

Section exposed:

One foot of sandy, soil overburden and at least five
feet of clay.

Sample collected and tested:

0-145 Sample representative of clay exposed.

Utilization: Suitable for common brick, face brick and drain tile.

Boulogne

(1) Location of exposure:

Highway cut at south end of the St. Marys River
bridge on U. S. Highway No. 1, one mile east
of Boulogne.

Section exposed:

Sand, grayish-yellow
Clayey sand, yellow
Clayey sand, mottled
orange and gray
Plastic clay, gray and red
Sand, clayey, to base of cut

feet
foot

feet
feet
foot

Samples collected and tested:

0-147 Plastic clay, bed 4.
0-264 Mixture of equal parts of
beds 2 and 3,

Utilization:

Both the plastic clay and the
for common brick.

clay, bed 4, with sandy clay,

sand-clay mixture are suitable

(2) Location.of deposit:

On hillside of Pigeon Creek, 0.7 mile east of
U. S. Highway No. 1 bridge across St. Marys
River and nearly two miles east of Boulogne,

Section exposed:

1., Sand, gray and yellow
2. Clay, mottled red, gray and
yellow
3. Clayey sand, yellow, gray and
red

2 feet

6 feet

15 feet

Sample collected and tested:

0-148 Clay representing bed 2.

Utilization: Either common or face brick of good quality could be made
from this clay.

Orang Bluff

Location of deposit: Adjacent to St. Marys River at Orange Bluff.

Section exposed: Clay thickness unknown, thin, sandy, soil overburden.

Sample collected and tested:

0-149 Clay, typical

Utilization: Well suited for common and face brick.

Brickyard Landing St. Mays River

Location of pit: Abandoned brick plant site four miles southeast of
Kings Ferry.

Section obtained by clearing off natural bank and by auger:

1. Soil, sandy loam 6 inches
2. Clay, mottled gray and red 2 feet
3. Sandy clay, gray 6 feet

Sample collected and tested:

0-213 Clay representing beds 2 and 3.

Utilization: Well suited for common brick manufacture.

OKALOOSA COUNTY

Milligan

Location: Roadside bank and ditch on east side of small creek valley,
2.3 miles west of Milligan on U. S. Highway No. 90.

Section exposed:

1. Sandy soil overburden 1 foot
2. Clay, upper portion brown to
reddish and crumbley; lower
portion gray mottled with red
and yellow and fairly tenacious 7 feet
3. Fine clayey sand, mottled light
gray and yellow (bottom not
exposed) 3 feet

Samples collected and tested:

0-193 Clay representing bed 2.
0-232 Clay and clayey sand representing beds 2 and 3.

Utilization:

Both samples indicate the material to be satisfactory for
good, red, common brick.

PUTNAM COUNTY

Springside

Location of deposit: Brick clay is exposed at a number of places in the
vicinity of Springside. The sample was taken one-
half mile northeast of Springside Station.

Section exposed: Auger boring encountered one foot soil overburden and
four feet of clay.

Sample collected and tested:

0-209 Brown Clay.

Utilization: Suitable for good common brick.

Woodburn

Location: In roadside ditch, 400 feet northwest of bridge over Rice Creek.

Section exposed:

Sandy loam overburden
Sandy clay, mottled gray and
yellowish-brown

1 foot

5 feet

Sample collected and tested:

0-219 Sandy clay representing beds 1 and 2.

Utilization: Suitable for common brick.

Orange Mills

Location of clay exposure:

In large drainage ditch adjacent to Highway
206, two miles northeast of Orange Mills.

Section exposed:

1. Dark gray loam overburden
2. Clay, upper portion dark gray;
lower portion light gray,
spotted with yellow, irregularly
streaked with sand
3. Fine gray sand

1 foot

51 feet
4 feet

Sample collected and tested:

0-221 Clay representative of bed 2.

Utilization: Suitable for manufacture of good, red, common brick.

Hopkins Point

Location: Hopkins Point, about 4 miles south-southeast of Crescent City.

Section exposed by auger:

1. Overburden, dark clayey loam 6 inches
2. Gray clay (lower portion contains
a few calcareous concretions) 4 feet

Sample collected and tested:

0-220 Clay representative of beds 1 and 2.

Utilization: With proper preparation suitable for good, red common brick.

ST. JOHNS COUNTY

Hastings

LocAtion of exposure:

In roadside ditch on State Highway No. 207, 500
feet west of bridge over Deep Creek and 1.4 miles
east of Hastings Station.

Section exposed:

1. Gray loamy, sand overburden 1 to 1 feet
2. Clay, mottled gray and brown 4 feet

Sample collected and tested:

0-210 Clay representing beds 1 and 2.

Utilization: Suitable for good grade of common brick.

SANTA ROSA COUNTY

East Branch Coldwater River

Location of exposure: In section 8, township 4 north, range 27 west, on
right bank of East Branch of Coldwater River.

Section exposed:

1, Overburden, sand and fine
gravel
2, Clay, light gray and yellow
3. Clay, gray, with pyrite
concretions

10 feet
3 feet

3 feet

4 Clay, light red

Samples collected.and tested:

0-106 Light gray clay, bed 2.
0-107 Gray clay, bed 3
0-108 Light red clay, bed 4.

Utilization:

Allenton School

Location of pit:

Section exposed:

All suitable for good face brick or common brick either
alone or mixed with other clays.

Twelve miles north of Milton and a few hundred feet west
of Highway No. 87 at site of temporary brick plant oper-
ated in 1922 by G. H. Murphy, Glendale.

Sand overburden
Brown sandy clay
Gray clay (bottom not exposed)

1 to 2 feet
2 feet
4 feet

Sample collected and tested:

0-173 Clay representing beds 2 and 3.

Utilization: Common brick.

Crow Bridge, West Branch Coldwater River

Location of exposure:

In bluff and roadside gully on right bank of West
Branch Coldwater River a short distance downstream
from Crow Bridge on Highway No. 87, approximately
11.5 miles north of Milton.

Section exposed:

Sand overburden minimum thickness
Gray clay, tough and laminated
Limonitic sandstone
Ocherous clay

3 feet
8 feet
1 inch
8 to 12 inches

Sample collected and tested:

0-174 Gray clay, bed 2.

Utilization: Suitable for common or face brick, hollow block or drain
tile.

Milton

(1) Location of deposit: On Kehoe farm, 24 miles northeast of Milton,
200 feet west of west bank of river.

41 feet

Section expsd: asd

1. Dark gray loam soil overburden 1 foot
2.' Brown silty clay 2 feet

Sample collected and tested:

0-139 Brown alluvial clay, bed 2.

Utilization: Suitable for common and face brick.

(2) Location: Abandoned brick yard site near residence of C. T. Brown,
on west bank of Blackwater River, five miles northeast of
Milton.

Section exposed:

1. Soil overburden, grayish-
yellow loam 1 foot 3 inches
2. Clay 3 feet
3. Clayey sand, gray and brown 2 feet

Sample collected and tested:

0-160 Clay, bed 2.

Utilization: Suitable for excellent light colored face brick.

WALTON COUNTY

Paxton

Location of deposit: One-quarter mile south of the railroad at Paxton.

Section exposed in gullied ditch:

1. Overburden, grayish-
yellow sand 1 foot
2. Coarse orange sand 2 feet
3. Silty clay, gray, red and orange 7 feet

Sample collected and tested:

0-195 Silty clay, bed 3.

Utilization: Suitable for light colored face brick or common brick.

Red Bay

Location of bed sampled: At a spring one mile east of Red Bay post office

Section exposed: Measured section not taken because overburden is too
heavy for commercial exploitation of clay.

Sample collected and tested:

Utilizatio

Arggle

O-136 < Dc uniweathred. clay representing first two feet
above top of fossiliferous shell marl.

n: Suitable for common brick.

Location: In road cut four miles southeast of Argyle on the road to
Knox Hill.

Section exposed:

1. Soil overburden
2, Clay (bottom not reached

Sample collected and tested:

0-157 Clay representing bed 2.

Utilization: None.

8 inches
5 feet

WASHINGTON COUNTY

Caryville

Location of exposure: At Caryville from borrow pit along approach to
bridge across Choctawhatchee River.

Section exposed:

1. Overburden, gray and yellow
sand 1.5 feet
2. Alluvial clay 4 feet

Sample collected and tested:

0-198 Alluvial clay bed 2.

Utilization: Suitable for common brick.

Chipley

Location of plant and pit: Two miles southwest of Chipley at brick plant
of Peaden Materials Company (formerly Hall
Brick Yard).

Section exposed:

1. Overburden
2. Gray clay

Sample collected and tested:

0-127 Gray olay, bed 2.
0-127-

1/2 foot
3 to 6 feet

45
Utilization- Li ghtegraypLnk or cream-colored face brick, common brick,
or semi-refractory brick.

Vernon

(1) Location of plant and deposit: One mile south of Vernon at site of
abandoned Vernon Brick Company,

Section exposed in pit: Not measured but the 4- to 5-foot layer of red-
colored clay bed with sand above and below it
was sampled.

Sample collected and tested:

0-124 Red clay.

Utilization: Will make good common brick.

(2) Location of exposure: Three miles southeast of Vernon on south side
of Cravey's Mill Creek.

Section exposed: Measured section not available. Light gray clay
streaked with red is probably thicker than three feet.

Sample collected and tested:

0-126 Very plastic light gray clay..

Utilization: Suitable for smooth light-colored face brick.

(3) Location: Exposed in road cut three miles south of Vernon on road
to Greenhead.

Section exposed:

1. Soil, loose sand 1.5 feet
2. Sandy clay, dark red 2 feet
3. Clay, red and light gray 4 feet
4. Clayey sand, yellow and
light gray 5+feet

Sample collected and tested:

0-246 A mixture of clay and sand representing
3, and 4.

Utilization: Suitable for face brick or common brick.

beds 1,2,

Wausau

(1) Location: Road material Clay pit at Wausau, 800 feet west of
Wausau Station.

Section exposed in pit:

1. Sandy clay soil 6 inches

2. Gray clay with some red and
brown
3. Yellow sand
4. Light gray and pink clay
5. Sand

4 feet
8 inches
2 feet
3 feet

Samples collected and tested:

0-128 Gray clay, bed 2.
0-129 Gray and pink clay, bed 4
0-251 Mixture of four parts 0-128; two parts 0-129
and four parts sand, bed 5.

Utilization:

Either clay or the mixture make attractive light-colored,
face brick.

(2) Location: Roadside gully 2.7 miles west of Wausau on the Vernon
road.

Section exposed:

Soil, coarse orange sand
Clayey sand, reddish orange
Micaceous clay, light gray
Sand

6 inches
6 feet
9 feet

Samples collected and tested:

0-248 Light gray clay, bed 3.
0-249 Clay and sand representing beds 2 and 3.

Utilization:

(3) Location:

Both have poor plasticity but are probably suitable for
common brick.

Two miles southwest of Wausau Station on the road to Lynn
Haven. Section exposed in roadside ditch about half way
up hillside.

Section exposed:

Soil, sandy clay
Clay, mostly red
Clayey sand, gray and yellow
Clay, gray, laminated
Sand, gray and yellow

6 inches
2 feet 6 inches
3 feet
3 feet 6 inches
3+ feet

Samples collected and tested:

0-130 Red clay, bed 2.
0-131 Gray clay, bed 4.
0-254 Sand-clay, mixture

of beds 2, 3, 4, and 5.

Utilization: Not suitable for clay products other than inferior
common brick.

S (4) Location: Wine miles northeast of Wausau on road to Chipley in
S .roadeide.ditch on east. side of.hill.

Section exposed:: Clay is exposed in ditch for several hundred feet
and red sand alternates with red clay with no
apparent regularity.

Sample collected and tested:

0-156 Represents three-foot thickness of red clay with
only a few inches of soil overburden.

Utilization: Suitable for red common brick.

48
Table 3.

County ALACHUA BAY C AL H OU

Saple Number 0-216 0-217 0-218 0I. -14 0-265 0-103 0-104

Physical Properties
Plasticity
Water of plasticity %
Linear air shrinkage %
Modulus of Rupture
Slaking test
Color

Firing behavior
Linear shrinkage %
Cone 010 (950"C)
Cone 05 (1050C)
Cone 03 (1090"C)
Cone 1 (1150C)
Cone 3 (1190*C)
Cone 6 (12500C)
Absorotion% by weight
Cone 010
Cone 05
Cone 03
Cone 1
Cone 3
Cone 6
Porosity %
Cone 010
Cone 05
Cone 03
Cone 1
Cone 3
Cone 6
Color
Cone 010

Cone 05

Cone 03

Cone 1

Cone 3

Cone 6

Fair G
68
16.6
Cracked 2
Fast F
Grayish L
pink p

4.5
Cracked
Cracked

Cracked

1.6

6.7

Light
grayish
red
Light
grayish
red
Light
brown

ood
35
10.9
70
ast
eight
ink

0.5
1.0
1.0
1.0
1.5
1.5

13.5
13.7
13.6
13.5
11.3
11.7

33.5
33.6
33.5
35.0
30.8
31.2

Fair
37
6.6
160
Medium
Red

1.0
1.0
2.5
3.0
5.5
5.0

24.2
21.8
20.0
19.6
15.1
15.4

42.3
43.0
40.2
38.9
32.3
34.1

Pink Light
brick
red
Pink Grayish
red

Buff

Grayish
red

- Buff Grayish
red

Gray Buff

S Cream

Good
46
6.4
210
Fast
Very
light
gray

1.0
2.5
3.5
5.0
7.5
7.5

27.3
27.1
23.7
18.4
12.3
10.6

42.3
43.8
34.8
31.7
27.4
23.3

Poor
37
6.6
180
Fast
Very
light
gray

0.0
0.0
1.5
2.0
2.5
4.0

23.2
22.9
21.1
18.8
16.1
15.7

40.0
41.0
39.5
37.2
35.5
34.6

White White

White

White

White

Grayish Light
red cream

Grayish Light
red cream

White

White

White

White

White

Excel.
36
8.5
290
Fast
Light
brown

-0.5
0.5
2.5
3.5
3.5
5.5

19.7
20.2
14.1
12.8
12,2
11.0

36.9
37.3
32.8
30.5
29.0
28.7

Poor
25
2.0
180
Slow
Dark
gray

-2.0
-0.5

-0.5

18.6
20.2

20.4

41.6
40.9

-,,

Reddish Reddish
orange orange

Reddish
orange

Reddish
orange

Reddish -
orange

Reddish -
orange

Reddish Brick
orange red

Brick
red

Physical and Firing Properties of Florida Clays
(J. H. C. Martens analyst)

I I 1_

N CLAY DUVAL ESCAMBIA

0-105 0-201 0-229 0-202 0-208 0-205 0-189 0-190 0-170 0-175

Poor
28
2.0
30
Slow
Yellow

-

0.0

19.7
20.4
20.5
19.1

20.0

41.7
'40.9
39.3
-

40.0

Reddish
orange

Reddish
orange

Brick
red

Brick
red
-

Brick
red

Fair
29
7.4
210
Fast
Grayish
red

1.5
1.5
1.0
1.5
1.0
2.0

16.3
'14.5
'14.2
15.0
14.6
'14.5

32.6
34.2
35.9
'33.4
33.5
34.1

Light
brick
red
Light
brick
red
Light
brick
red
Brick
red

Brick
red

Brick
red

Fair
37
11.6
370
Fast
Grayish
red

1.5
1.5
2.0
3.0
3.0
3.5

13.0
13.0
10.6
9.4
9.4
9.3

32.3
32.3
29.3
27.9
27.3
27.3

Good
32
8.8
370
Fast
Grayish
yellow

1.0
1.5
2.5
2.5
2.0
2.0

13.4
10.9
10.0
9.5
8.7
9.5

32.9
30.5
29.4
28.4
28.0
29.4

Excel.
36
9.9
680.
Fast
Brown

0.5
1.5
2.5
2.5
4.0
4.0

12.5
8.1
6.0
5.1
3.7
4.1

32.9
24.4
21.5
23.8
16.8
17.7

Good
26
8.2
550
Slow
Light
brown

Good
34
9.8
460
Fast
Gray

1.0
2.5
2.5
3.0
4.0
3.5

11.3
6.6
5.9
5.2
3.4
3.8

25.6
16.3
19.7
18.8
15.0
15.8

Good
33
8.2
200
Fast
Light
brown

Good
29
..7.0
340
Medium
Yellow-
ish
gray

0.0
2.0
2.0;
1.5
2.5
3.0

15.1
14.1
12.7
10.5
11.8
8.1

32.3
30.8
28.7
27.7
25.4
24.6

Grayish Reddish Reddish Reddish Reddish Reddish Reddish Reddish
red orange orange orange orange orange orange orange

Grayish Reddish Reddish
red orange orange

Grayish Reddish Brick
red orange red

Grayish Brick
red red

Brick
red

Grayish Brick
red red

Brick
red

Brick
red

Dark
red

Reddish
orange

Brick
red

Brick
red

Dark
red

Dark
red

Reddish
orange

Light
brick
red
Light
brick
red
Brick
red

Reddish Reddish Reddish
orange orange orange

Brick Light
red brick
red
Brick Brick

red

red

Brick
red

Brick

Brick Brick Brick
red red red

Brick Brick Brick Brick
red red red red

Good
26
7.3
440
Medium
Light
brown

0.0
1.0
2.0
2.0
2.0
2.0

14.2
12.1
11.0
9.5
9.1
7.7

30.4
26.9
27.8
26.8
25.2
24.7

0.0
0.0
2.5
3.5
3.0
3.5

18.6
18,0
12.2
12.3
10.5
9.8

34.6
32.4
30.3
28.1
27.5
26.3

0.5
0.5
1.5
3.0
2.5
3.5

14.3
11.1
10.5
8.3
6.8
6.3

28.8
27.4
26.8
24.1
20.9
20.0

Grayish
red

..

County ESCAMBIA continued

Sample Number 0-183 0-184 0-85 0-181-- 0-233 0-176 0-166

Physical Properties
Plasticity
dater of plasticity %
Linear air shrinkage %
Modulus of Rupture
Slaking test
Color

Firing behavior
Linear shrinkage %
Cone 010 (9500C)
Cone 05 (1050*C)
Cole 03 (1090"C)
Cone 1 (11500C)
'Cone 3 (1190C)
'Cone 6 (1250"C)
Absorptidon by weight
Cone 010
'Cone 05
'Cone 03
'Cone 1
'Cone 3
Cone 6
Porooity'%
Cone 010
'Cone 05
'Cone 03
'Cone 1
'Cone 3
'Cone 6
Color
Cone 010

Cone 05

Cone 03

Cone 1

Cone 3

Cone 6

Good
31
9.8
420
Medium
Light
brown

0.0
2.0
S2.0
S3.0
3.0
4.5

12.6
* 9.9
S8.6
6.0
5.3
4.9

26.3
21.4
S23,4
* 18.3
S16.5
17.8

Good
28
9.0
'420
Medium
Light
brown

0.0
1.0
2.0
S2.0
S2.5
S2.0

14.4
11.1
S9.7
5.1
7.9
S6.3

30.4
S27.8
S26.9
23.8
S23.4
21.9

Good
33
9.0
'580
Fast
Yellow-
ish
gray

0.5
3.0
3.5
5.5
6.5
7.0

15.4
9.9
6.9
3.6
0.3
0.2

29.1
21.5
16.5
8.0
1.5
1.3

Reddish Light Buff
orange brick
red
Reddish Reddish Buff
orange orange

Reddish
orange

Reddish Buff
orange

Good
26
7.1
'440
Medium
Brown

0.0
0,0
2.0
3.0
2.5
2.0

14.5
13.0
11.0
8.4
6.6
7.2

29.8
28.7
27.5
24.2
23.5
22.5

Reddish
orange

Reddish
orange

Reddish
orange

Reddish Reddish Reddish Brick
orange orange orange red

Brick Brick Dark Brick
red red grayish red
red
Brick Brick Dark Brick
red red grayish red
red

Excel. Excel. ixcel.

28 42
8.4 7.5
510 "200
Medium Fast
Light Yellow
brown

0.0 0.0
1.5 1.0
2.0 7.0
2.5 7.5
2.5 8.5
3.5 9.5

14.1 25.9
S10.5 21.2
10.9 10.8
7.7 7.1
5.6 5.7
5.4 2.7

28.9 41.2
24.2 *37.2
22.4 "'23.6
20.0 15.9
15.8 13.5
16.7 7.0

.48
9.3
'270
past
Reddish
-'orange

1.0
4.5
8.0
9.5
10.5
10.5

23.0
14.5
5.1
2.5
0.4
0.4

39.2
S29.5
13.2
S7.5
2.8
2.3

Reddish.Reddish Light

orange orange

Reddish
orange

Brick
red

Brick
red

Reddish
orange

Light
brick
red

grayish
orange
Light
grayish
orange
Light
grayish
orange

Brick Grayish
red orange

Brick Brick
red red

Brick
red

Brick
red

Brown

Gray

Tabl50 3
Table 3.

continued

" '

SFLAGLER
0-167 0-165 -230 0-16 0-22 0-22 0-223 0-226 0-228 0-222

Good Excel. Fair
31 37 26
6.0 7.4 6.2
140 .. 200 210
Fast Fast Fast
Grayish Light .Light
pink grayish grayish
pink orange

0.5 1.0 0.0
0.5 3.5 0.0
2.5 6.0 0.5
1.5 6.5 1.5
1.5 8.0 2.5
5.0 9.0 3.0

20.1 20.8 16.7
17.7 15,6 15.3
15.0 9.9 13.8
14.4 7.2 12.7
11.8 2.7 10.2
9,9 0.8 9.0

34.3 36.1 33.0
34.8 30.7 33.1
32.4 21.4 31.5
31.8 17.3 31.2
28.3 6.1 26.6
26.3 3.1 24.6

Light Light Pink
grayish grayish
orange pink
Light Light Pink
grayish grayish
orange pink
Buff Light Grayish
grayish pink
pink

Buff Light
grayish
pink
Buff Light
brown

Grayish
pink

Buff

Buff .Gray Buff

Fair.
25
.5.4
170
Fast
Yellow-
gray

0.0
0.0
-0.5
0.5
1.0
0.5

16.5
15.5
15.9
15.3
14.8
14.7

34.7
34.7
34.3
33.7
32.5
33.6

Good
39
11.1
380o
Fast
Gray.

1.0
1.0
2.5
Fu ed
gl.ss

16.9
17.0
.7.5

32.5
33.6
22.0
-,,

Good
30
. ,9.3
530
Fast.
Dark
gray

S2.0
2.0
2.0
2.0
1.5
1.5

12.0
10.5
10.0
7.9
8.1
8.6

30.5
29.2
25.7
24.2
24.6
24.9

Reddish Reddish Reddish
orange orange orange

Reddi.'hl Reddish
orange orange

Reddish
orange

Reddish

orange

Reddish
orange

Light
brick
red

Reddish
orange

Yellow Brick
rod

Good
26
6.9
660
Fast
Brown

0.5
0.0
1.0
1.0
1.0
.1.0

10.8
10.0
.9.7
10.3
.9.5
10.3

30.3
30.4
29.5
29.8
29.6
30.0

Light
brick.
red
Light
brick
red
Brick
red

Fair
24
6.4
380
Fast
Gray

0.5
-0.5
0.5
0.5
0.5
1.0

10.4
11.1
10.8
11.4
10.7
10.9

33.2
30.7
31.1
31.8
28.7
31.2

Light
brick
red
Light
brick
red
Brick
red

Good
29
8.8
420
Fast
Gray

0.5
1.0
2.0
1.5
1.5
2.0

10.6
9,0
10.0
7.7
7.9
8.5

29.4
27.8
25.7
25.5
26.6
27.0

Good
25
6.6
370
Fast
Brown

0.0
0.0
0.5
0.0
0.0
0.5

10.8
11.0
10.9
10.0
12.1
8.3

31.8
32.0
31.5
31.0
30.7
25.8

Reddish Light
orange brick
red
Reddish Light
orange brick
red
Brick Brick
red red

Brick Brick Brick Brick
red red red red

* Brick
red

Brick
red

- Brick Brick Brick
red red red

Brick
red

Brick Brick Brick
red red red

Brick
red

Brick
red

-~ I

52
Table 3.

County G A D S D EN

Sale Number 0-115 0-153 0-152 0416 0-117- -0-150

Physical Properties
Plasticity
Water of Plasticity %
Linear air shrinkage '"
Rodulus of Rupture
Slaking test
Color

Firing behavior
Linear Shrinkage %
,one 010 (9500C).
Cone 05.(1050C.)
Cone 03.(1090 C.)
Cone 1.(1150*C)
Cone 3.(1190'C)
Cone 6.(1250,C)
Absorption% by weight
Cone 010
Cone 05.
Cone 03.
Cone 1
Cone 3.
Cone 6.
Porosity %
Cone 011.
Cone 05.
Qone 03.
Cone 1
qgne 3.
Cone 6.
Color
Cone 010

Cone 05

Cone 03

Cone 1

Cone 3

Cone 6

Fair
32
.8.6
270
Slow
Light
brown

0.5
0.5
1.5
1.0
3.0
2.0

17.7
17.3
15.5
15.3
13.3
12.8

36.7
34.8
33.9
33.2
30,3
30.0

Fair
26
.7.1
210
Slow
Brown

-1.0
-1.0
0.0
0.0
1.5
0.5

14.2
14.3
14.5
13.1
14.5
13.0

31.0
31.9
32.5
32.1
32.3
31.5

Fair
127
13.8
370
Medium
Light
gray

6.0
18.5
19.5

14.5

Cracked
0.9
0.9

1.2
-

5.5
6.6

18.9

Reddish reddish Buff
orange orange

Reddish
orange

Fair
27
.9.0
460
Fast
Brown

0.0
0.0
1.0
1.5
1.0

12.0
12.8
12.5
11.5
13.3
10.3

32.8
33.5
32.4
31.6
33.1
31.9

Brick
red

Poor
35
11.2
270
Fast
Grayish
yellow

0.0
1.0

1.0

1- 8
i1.8
15.6
14.4

14.3

33.0
34.3
32.5

25.3

Orange

Reddish Light Reddish Orange
orange brcwn orange

Reddish Reddish Yellow- Brick

orange orange

Reddish Reddish
orange orange

Light
brick
red
Light
brick
red

Light
brick
red
Light
brick
red

ish
gray

red

Brick
" red

Dark Dark
grayish red'
yellow
Dark
red

Good
24
5.9
250.
Fast
Yellow-
ish
gray

0'.0
0.5
-0.5
0.0
0.5
0.0

13'.4
14.3
13. 7
13.5
13.6
14.3

34.0
34;2
33;4
33' 4
32 4
33.0

Buff

Buff

Reddish Orange
orange

Poor
54"
14.3
630
Fast
Light
gray

I.0
4.0
5,0
-
5.5

11.1
7.1
3.9

3.3

27;4
18.7
14 2

14.4

Buff

Buff

Buff

Reddish
orange

Brick Light
red brick
red
Reddish
orange

Buff

continued

r

GULF HOLMES JACKSON

0-10.O 0-118 0-1201 0-137 0-138 0-231 0-158 0-197 0-109 0-237

Good
29
6;0
290
Slow
Brown

-0.5
0.5
1.0
2.0
1.5
2.5

18'.0
18.9
16.6
16.2
16.1
15.6

37.5
38.9
36.8
34.4
36.3
35.9

Reddish
orange

Reddish
orange

Light
brick
red
Light
brick
red
Brick
red

Brick
red

Good
38
7;4
100
Slow
Brown

1.0
1.5
2.5
4.5
6.5
6.0

24.7
23.0
20.3
16.3
13.9
14.0

43.5
43.1
40.4
36.8
33.8
34.3

Light
brick
red
Light
brick
red
Light
brick
red
Light
brick'
red
Brick
red

Brick
red

Good
32
6.8
100
Slow
.Brown

0.0
0.0
2.0
3.0
3.5
3.0

19.5
20.7
17.3
15.9
15.2
13.1

39.4
39.3
37.9
35.9
36.1
34.5

Light
brick
red
Light
brick
red
Light
brick
red
Light
'brick
red
Brick
red

Brick
red

Reddish Reddish Reddish Brick
orange orange orange red

Reddish Reddish Reddish Brick
orange orange orange red

Reddish Reddish Reddish Brick

orange orange orange

red

Excel.
39
11.2
1100
Medium
Dark
gray

1.0
0.5
3.0

3,0

15.0
15.4
10.1

9.5

33.7
34.7
28.2

27,6

Brick Brick Brick
red red red

Light Brick Brick Brick
brick red red red
red
Brick Dark Brick
red red red

Excel.
51
14.1
820
Fast
Grayish
yellow

1.5
2.0
3.0

6.0

12.2
10.1
5.0

2.7

2q 1
29.1
23.6
16.0

9.5

Good
28
7.0
500
Slow
Yellow-
ish
gray

0.0
0.0
1.0
1.0
2.0
1.5

14.7
14.0
13.2
12.7
11.6
12.2

34.6
34.6
33.9
32.6
30.9
32.0

Good
40
13.2
720
Medium
Grayish
yellow

0.0
1.0
3.0
4.5
5.0
6.0

17.3
14.5
10.5
7.6
6.0
4.9

32.4
30.8
25.8
20.5
19.5
17.7

Good
46
9.4
290
Medium
Brown

1.5
2.5
4.0
7.5
7.0
7.5

23.8
19.1
14.9
9.8
8.9
8.3

41.9
38.2
33.3
26.2
25.4
24.4

Reddish
orange

Light
red

Light
red

White

Brick
red

Dark
red

Light Dark
cream red

Light Dark
cream red

j __ _ _ _

Good
40
8.7
290
Fast
Gray

2.0
2.0
2.0
4.9
9.5
8.5

21.2
22.6
19.3
18.3
7.8
I 10.0

38.7
39.1
37.2
35.0
21.2
24.3

White

Fair
39
10.1
270
Fast
Brown

1.0
2.0
5.5
5.5
7.0
6.5

22.6
18.4
13.5
11.8
12.1
11.4

42.4
38.5
34.3
30.8
31.3
31.4

Brick
red

White Brick
red

White

Brick
red

54
Table 3. continued

County JACKSON continued JEFF- LEON
PERSON
Sample Number 0-12 0-12 0-123 0-241 0-242 0-63 0-259

Physical Pronerties
Plaaticity
Water of plasticity %
Linear air shrinkage%
Modulus of Rupture
blakang test
Color

Firing behavior
Linear shrinkage %
*Cone 010 (950*C)
*Cone 05 (1050"C)
Cone 03 (10900C)
-Cone 1 (1150*C)
*Cmne 3 (ll90C)
Cone 6 (1250"C)
Absorptinnyby weight
Cone 010
Cone 05
Cnne 03
Cone I
Cone 3
"Cmne A
Pmrnslty :'
Cone 010
Cone 05
Cone 03
Cnne 1
Cone 3
Cone 6
Color

Cone 03

Cone 1

Cone 3

Cmne 6

Good
66
17.5
560
Fast
ited

4.0
4.5
10.0

10.5

10.0
10.5
1.6

2.0

25.2
23.6
9.1

7.2

Red

7.ed

Good
50
14.8
'440
Medium
Dark
red

2.0
5.0
.5.0

.7.0

13.2
10.0
6.7

.5.9

31.8
23.6
24.8

20.2

Excel.
58
9.8
110
Fast
Pink

.1.5
2.0
10.0
11.0
15.0
15.5

32.5
32.5
15.8
11.0
.2.4
0.9

49.0
49.1
32.7
26.3
7.0
2.3

Reddish Pink
orange

Reddish Pink
orange

Drown Brick
red

Pink

Good
30
6.1
140
Medium
Red

0.0
0.0
2.0
4.5
4.5
5.0

20.3
19.3
17.1
12.3
11.8
11.3

38 .7
31.3
36.7
33.9
30.8
30.7

Pink

Fair
26
5.4
40
Medium
Red

0,0
0.0
0.5
0.5
1.0
3.0

19.9'
18.7
17.8
17,2
14.2
14.0

37.4
37.9
32.0
35.7
32.5
33.1

Pink

Pink Pink

Pink Pink

Pink Grayish Pink
red

Drown Brick Choco-
red late
brown
Choco-
late
brown

Grayish Grayish
red red

Grayish Grayish
red red

Good
31
8.6
210
Fast
Brown

1.0
2.5
2.0
2.5
2.5
2.5

14.9
14.8
14.1
14.4
13.6
13.8

34.8.
35.0
34.0
34.0
32.5
33.3

Reddish
orange

Reddish
orange

Brick
red

Brick
red

Brick
red

Brick
red

Good
26
8.6
280
Fast
Brown

0.0
1.5
1.0
1.5
0.5
2.0

17.1
13.1,.
12.8
11.2
12.1
11.8

33.6
33.4
33.8
31.7
32.0
32.5

Reddish
orange

Reddish
orange

Orange

Orange

Buff

Buff

I

LIBERTY NASSAU

0-100 0-101 0-102 0-14 0-13 0-142 .0-144 0-145 0-147 O-264

Reddish Reddish
orange orange

Fair
41
8.9
310
Slow
Light
brown

* 0.0
*0.5
*3.0
2.5
4.0
2.5

21.2
21.1
15.9
17.3
15.2
15.6

40.7
40.6
36.5
37.7
34.6
34.5

Reddish
orange

Reddish Reddish Brick
orange orange red

Reddish Reddish -
orange orange

Brick Brick Brick
red red red

Brick Brick
red red

Fair
26
*4.0
220
Slow
Dark
gray

-1.0
-0.5
* 0.0
0.5
1.5
1.0

19.7
20.8
19.4
-19.7
*19.5
20.3

38.1
40.6
40.0
38.4
38.3
37.7

Reddish
orange

Good
25
5.1
490
V.slow
Dark
gray

0.0
0.0
0.3

1.0

17.8
17.8
15.5

14.9

36.9
37.3
35.7

34.5
-

Reddish Reddish
orange orange

Reddish Reddish
orange orange

Brick Reddish Reddish

orange orange

Reddish Reddish
orange orange

Brick Reddish Light
red orange brick
red
Brick Reddish Light
red orange brick
red

Excel.
42.
10.3
520
Medium
Red

S0.0
1.0
4.5
3.5
S6.0
10.5

.18.0
17.3
10.6
9.9
9.6
9.1

36.6.
35.5
29.8
27.2
,27.2
26.9

Good
41
7.6
180
Medium
Light
brown

1.0
1.0
4.5
.4.0
.6.5
8.0

25.8
24.6
16.7
17.0
.12.2
12.6

42.8
.42.5
35.3
,34.4
30.4
30.7

Reddish Light
orange brick
red
Reddish Light
orange brick
red
Brick Ligh+t
red brick
red
Brick 3rick
red red

Brick Brick
red red

Brick
red

Good
33
.6.9
290
Medium
Brown

S0.0
-0.5
.2.5
2.0
2.5
3.5

.19.3
20,6
17.1
16.9
15.7
14.4

.37.0
.39.0
,35.6
.36.8
34.6
33.5

Good
25
8.6
230
Medium
Brown

0.0
0.0
1.0
S2.0
3.5
2.5

17.3
17.7
16.4
16.7
15.0
15.7

37.0

36.4
36.7
35.3
35.9

Light Reddish
brown orange

Reddish Reddish
orange orange

Reddish Reddish
orange orange

Reddish Reddish
orange orange

Red

Light
brick

red
Brick Light Light
red red brick
red

Reddish Light
orange brick
red
Reddish Reddish
orange orange

Good
37
11.2
390
Fast
Brown

0.5
1.0
3..5
3.0
3.5
3.0

12.3
13.6
10.5
9.5
9.5
9.6

31.6
33.1
29.3
28.0
28.9
30.2

Fair
38
11.7
580
Medium
Light
brown

-0.5
0.5
2.0
2.5
2.5
1.5

11.0
12.7
11.0
10.3
9.3
8.6

31.0
30.2
28.4
27.6
27.5
26.0

Fair
30
7.6
240
Medium
Light
brown

0.0
-0.5
1.5
1.5
2.5
1.5

15.8
15.3
14.5
14.8
14.0
13.9

34.5
35.1
33.9
32.8
33.6
33.4

red

Brick
red

- -

.

Table 3
Table 3,

County NASSAU continued OKALOOSA PUT

Sample Number 0-148 0-149 0-213 0-193 0-232 0-209 0-219

Physical Properties
Plasticity
Water of plasticity %
Linear air shrinkage %
Modulus of Aupture
Slaking test
Color

Firing behavior
Linear shrinkage %
Cone 010 (950C)
Cone 05 (1050*C)
Cone 03 (1090C)
Cone 1 (1150"C)
Cone 3 (1190"C)
Cone 6 (12500C)
Abaerption % by weight
Cone 010
Cone 05
Cone 03
Cnnu 1
Cone 3
Cone A
Porosity %
Cone 010
Cone 05
Cone 03
Cono 1
Cone 3
Cone 6
Color
Cono 010

Cone 05

Cone 03

Cone 1

Cone 3

Cone 6

Good
39
9.3
250
Medi.u
Brown

0.0
1.5
3.5
3.5
6.0
5.0

20.1
17.1
15.5
14.4
10.6
10.1

38.6
39.0
34.8
33.8
29.6
29.0

Grayish
red

Good
32
9.3
610
Medium
Brown

Good
32
8.6
640
Fast
Brown

-0.5 0.5
0.5 1.0
1.5 2.0
2.0 2.0
1.5 1.5
-0,5 3.0

10.4 16.3
10.2 11.1
8.6 8.6
9.4 9.2
9.7 8.6
9.1 7.9

29.0 38.3
29.0 31.1
27.3 29.0
28.2 29.0
29.5 27.6
28.4 26.7

Grayish Reddise
reddish orange

orange
Grayish (eddish
red orange

Grayish Brick
red red

Grayish Brick
red red

Grayish Dark
red red

Light Dark
brown red

Reddi sl
orange

Brick
red

Brick
red

Brick
red

Dark
red

Good
36
7.'6
230
Medium
Brown

0.0
2.0
4.0
4.0
5.5
5.5

23.0
19.5
13.2
13.3
11.6
11.6

40.6
38.5
30.7
32.0
30.3
29.6

Light
brick
red
Light
brick
red
Brick
red

Fair
35
7.3
210
Fast
Brown

0.0
0.'5
2.5
3.0
3.5
3.0

21.7
20.4
16.7
14.3
13.8
14.2

40.0
41.0
36.6
34.6
33.0
33.4

Light
brick
red
Light
brick
red
Brick
red

Brick Brick
red red

Brick
red

Brick
red

Brick Brick
red red

Good
30
9.5
530
Fast
Brown

0.0
0.0
1.5
1.5
1.5
1.5

11.4
10.6
9.2
9.4
8.5
8.4

28.8
28.6
27.9
26.9
25.7
26.0

Reddisi

Fair
29
8.0
520
Fast.
Grayish
yellow

0.0
-0.5
0.5
0.,
0.5
1.0

11.5
11.8
11.0
10,8
11.6
10.8

33.0
31.5
31.0
30.8
31.0
30.1

i Brick

orange red

Reddish Brick
orange red

Light
brick
red
Light
brick
red
Brick
red

Brick
red

Brick
red

Brick
red

Brick Brick
red red

1 a &

continued

NAM ST. SANTA ROSA
JOHNS
0-221 0-220 -0-210 0-106 ,0-107 0-108 0-173 0-174 0-139 0-160

Brick Brick
red red

Fair
38
10.5
470
Fast
Brown

0.5
1.0
2.0
2.0
1.5
2.5

15.4
13.6
12.2
11.7
11,1
11.3

34.8
33.4
34.0
31.1
31.7
31.3

Light
brick
red
Light
brick
red
Light
brick
red
Light
brick
red
Brick
red

Good
32
9.0
470
Fast
Yellow-
ish
gray

1.0
1.5
2.5
2.0
.1.5
2.5

10.9
9.4
6.8
7.4
6.9
7.9

28.0
26.1
23.2
24.4
23.8
23.9

Reddish
orange

Reddish
orange

Brick
red

Brick
red

Brick
red

Fair
30
9.2
320
Fast
Brown

0.0
1.5
0.5
0.5
1.5
0.5

12.0
11.0
9.1
10.4
9.9
10.1

33.0
31.0
31.0
30.0
28.8
29.4

Light
brick
red
Reddish
orange

Light
brick
red
Brick
red

Brick
red

Dark
red

Excel.
39
8.5
380
Fast
Light
cream

0.5
2.5
6.5
6.5
9.0
7.5

19.2
16.4
8.6
6.5
0.5
0.0

33.3
30.0
19.4
15.2
1.2
0.0

Excel.
36
8.3
360
Fast
Gray

2.0
2.0
7.5
6.0
7.0
7.5

15.6
16.3
3.8
7.2
0.9
0.5

33.3
30.3
10.3
16.8
3.4
5.5

Excel.
37
8.5
210
Fast
Yellow

0.5
0.5
S4.0
4.0
S6.0
7.0

20.8
19.2
12.4
6.5
5.6
6.0

35.9
32.6
26.3
15.2
13.2
15.2

White Buff Salmon Buff Reddish Buff
orange

Cream

Cream

Buff

Salmon Buff Reddish Buff
orange

Buff Salmon Buff Reddish Buff
orange

Cream Buff Salmon Buff

Grayish Drab
yellow

Grayish Light
yellow brown

Brick
red

Brick
red

Reddish Buff
orange

Buff Reddish Buff
orange

Buff

Excel.
33
6.3
220
Medium
Orange

0.0
0.5
4.0
4.5
S4.5
7.5

21.3
20.0
13.6
. 11.6
10.0
6.0

37.6
37.5
S29.0
27.4
24.4
17.3

Buff Buff Cream

Excel.
34
9.1
420
Medium
Light
brown

0.5
0.5
2.5
3.0
3.0
4.5

16.7
15.5
11.2
10.1
6.7
5.1

31.4
31.0
25.0
24.1
21.2
16.1

Good
25
5.5
180
Medium
Y eslow-
gray

-0.5
-0.5
1.0
0.0
1.0
1.0

17.6
18.7
17.2
17.0
16.7
15.4

34.6
36.1
35.5
36.0
35.3
33.9

Good
38
7.5
230
Fast
Light
gray

0.5
1.5
3.0
3.5
5.0
8.0

21.3
19.5
16.3
14.6
12.1
8.9

36.2
36.5
31.1
30.2
26.3
23.4

Light
pinkist
gray
White

White

White

Cream

j

J

continued ..'e

County WALTON

Sample Numer 0-195 -. -17 -0-198 0-127 0-12L 0-016

Physical Properties
Plasticity
Water of plasticity
Linear air shrinkage
Modulus of Rupture
Slaking test
Color

Firing behavior
Linear shrinkage %
Cone 010 (950*C)
Cone 05 (1050*C)
Cone 03 (10900C)
Cone 1 (1150*0)
Cone 3 (1190C)
Cone 6 (12500C)'
Absorption% by weight
Cone 010
Cone 05
Cone 03
GCne 1
Cone 3
Cone 6
Porosity %
Cone 010
Cone 05
Cone 03
Cone 1
Cone 3
Cone 6
Color
Cone 010

Cone 05

Cone 03

Cone 1

Cone 3

Cone 6

Good
28
5.9
90
Fast
Light
pinkish
brown

S0.0
0.0
0.5
S1.0
S1.0
1.5

S19.0
S19.1
S18.1
17.0
* 16.7
16.1

35.7
36.8
35.4
34.6
34.0
31.7

Fair
37
10.2
320
Medium
Olive

1.0
0.5
3.5
3.5
4.0

S18.3
18.5
13.2
12.3
9.5

36.0
36.3
31.8
32.3
27.6

Poor
38
10.6
230
Fast
Brown

* 0.5
* 1.0
1.5

2.5

-19.7
* 19.7
S17.6

15.8

S39.7
39.7
37.3

35.8

- -- _~___ 4

Fair
29
7.0
290
Medium
Brown

* 0.5
0.0
0.5
S1.5
S1.5
S1.5

*17.0
S17.2
S16.4
*16.0
S14.2
14.7

35.3
35.8
35.2
33.8
32.0
32.5

Reddish Reddish Reddish Reddish
orange orange orange orange

Buff Reddish
orange

Buff

Brick
red

Reddish Reddish
orange orange

Reddish Reddish
orange orange

Buff Brick
red

Buff Brick Brick
red red

Buff

Light
brick
red
Brick
red

Brick
red

Good
39
9.0
320
Fast
Gray

S2.0
2.5
5.0
S7.5
.10.5
10.5

23.0
.22.9
.16.0
S12.0
S6.0
S 5.2

* 40.7
S40.0
32.1
27.3
17.2
16.1

Good
43
11,6
290
Slow
Dark
red

1.0
1.0
4.5
5.0
6.0
10.5

.1.9.6
.17.6
.13.5
10.8
10.4
S9.2

37.8
35.9
28.2
27.4
26.8
25.2

Excel.
46
7.6
70
Fast
Light
pinkish
gray

2.0
1.0
3.0
4.5
.7.0
7.5

28.2
28.6
26.6
S24.2
17.0
. 13.3

. 44.8
44.5
S43.0
. 40.7
34.0
30.0

Cream Reddish Very
orange. light
pink
Cream Reddish Very
orange light
pink
Cream Reddish Light
orange pinkish
gray
Cream Brick Light
red pinkish
gray
Cream Brick Light
red pinkish
gray
Cream Brick Light
red pinkish
vray

58
Table 3.

-

-- 11

WASHINGTON

0-246 0-128 0-129 0-251 0-248 0-249 0-130 0-131 0-254 0-156

Good
36
9.3
280
medium
Orange

0.0
1.5
3.5
4.0
4.5
5.0

17.1
19.8
15.0
12.4
9.1
11.1

39.6
38.5
35.8
31.2
28.3
30.3

Excel,
48
7.9
140
Fast
Light
pinkish
gray

2.5
3.5
5.0
6.0
11.0
11.5

26.9
26.6
19.3
16.5
7.9
4.9

43.5
41.6
36.2
33.4
19.8
15.5

Poor Good
28 38
8.6 9.8
240 220
Fast Medium
Light Brown
brown

Excel.
56
9.8
170
Fast
Light
grayish
pink

2.5
1.0
5.0
6.5
8.5
12.0

25.0
26.6
17.2
13.8
10.0
3.8

42.1
43.0
34.5
29.6
23.3
13.0

Good
35
6.6
130
Medium
Light
grayish
pink

0.0

2.0

5.5

22.2

2o. 8
20.8

11.5

40.0

39.3

30.0

Poor
35
11*1
320
Fast
Yellow-
ish
gray

0.0
0.5
1.5
1.5
2.5
2.5

13.5
12.8
12.4
12.6
10.9
9.7

31.1
29.6
29.0
26.0
27.2
26.8

Fair
61
18.2
650
Fast
Grayish
yellow

3.0
3.5
5.5

6.0
-

8.5
10.9
5.1

3.5

22.3
22.9
17.7

12,9

Poor
36
9.8
200
Fast
Orange

0.0

1.0
1.5
1.5
1.5

17.1

15.9
15.6
15.1
13.7

35.9

35.5
32.8
31.3
32.7

Reddish Light Light
orange pinkish pink
gray
Reddish Light Light
orange pinkish pink
gray
Light Light Light
brick pinkish pink
red gray
Brick Light Light
red pinkish pink
gray
Brick Light Light
red pinkish pink

gray
Brick Light
red pinkish
Prav.

Light
pinkish
grav

Light Reddish Reddish Reddish Reddish Reddish Brick
pink orange orange orange orange orange red

- Reddish
orange

Reddish
orange

Reddish Reddish
orange orange

Light Light Light Light
pink brick brick brick
red red red
Brick Brick Light
red red brick
red
Buff Brick Brick Brick
red red red

Brick Dark Brick
red red red

Light
brick
PeA

Reddish
orange

Brick Brick
red red

Brick Brick
red red

Brick Brick Dark
red red red

Brick Dark
red red

0.0
0.0
1.5
2.0
2.0
2.0

15.7
17.2
13.4
12.8
12.1
12.2

34.8
33.5
30.7
31.0
29.5
30.6

0.5
1.0
3.5
4.0
4.5
4.5

19.0
21.0
13.8
15.6
13.8
12.6

38.4
41.0
33.9
34.0
32.9
31.9

Fair
40
10.7
440
Fast
Red

0.5
1.0
2.0
3.5
4.5
3.5

17.0
16.2
13.6
11.9
10.5
9.7

35.0
34.4
32.1
29.1
28.1
27.2

- ----- --- -- ---i

FLRD GEOLOSk ( IC SUfRiW

COPYRIGHT NOTICE
[year of publication as printed] Florida Geological Survey [source text]

The Florida Geological Survey holds all rights to the source text of
this electronic resource on behalf of the State of Florida. The
Florida Geological Survey shall be considered the copyright holder
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the Florida Geologic Survey, as a division of state government,
makes its documents public (i.e., published) and extends to the
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	Title Page
	Foreword
	Table of Contents
	Introduction
	Extent of deposits
	Part II: Clays of northern...

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