Digitalfire Ceramic Materials Database

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Pine Lake Fireclay

Plastic Pennsylvania Fire Clay

Chemistry %

CaO	0.30
MgO	0.10
K2O	0.50
Na2O	0.30
TiO2	1.90
Al2O3	27.30
SiO2	58.60
Fe2O3	1.50

Volatiles %

LOI

9.50

PCE - Pyrometric Cone Equivalent	29-30
SVWT - Sieve Analysis Wet	on 28 mesh: 1% 35 mesh: 6.5% 48 mesh: 9.0% 65 mesh: 8% 100 mesh: 12.5% 150 mesh: 12.0% 200 me

This once popular (but variable) fire clay has not been available for many years. It occurs in many clay body recipes and common substitutes are Hawthorn Bond (likely the best) and AP green fire clay.

Very different chemical analyses have been presented for this material.
For example, another lists SiO2 as 70.8 and Al2O3 and 25.4 with no LOI?

Out Bound Links

(Materials - Unspecified) Hawthorne Bond - Missouri Fire Clay
Hawthorne Fireclay, Hawthorn, HAWTHORN 35m
(Materials - Unspecified) APG Missouri Fireclay - Buff Burning Plastic Fireclay
AP Green, A.P., A. P., APG Fire, APGFC
(Materials - Parent) Fireclay
Fire Clay
(Typecodes - Type) 1: FRC - Fireclay

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?>
<material name="Pine Lake Fireclay" descrip="Plastic Pennsylvania Fire Clay" searchkey="" loi="9.50" casnumber="70694-09-6">
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.300" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.100" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.500" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.300" tolerance=""/>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.900" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="U" percent="27.300" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="58.600" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.500" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="LOI" name="Loss on Ignition" percent="9.500" tolerance=""/>
</volatiles>
</material>