Jordan Fireclay
Low Iron Fireclay
Chemistry
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Volatiles
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Links to Other Materials
Miscellaneous
- Family: Clay Other
- Region: North America
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
A popular raw material for pottery clay bodies for many years.
This material contains natural flux to resist the growth of cristobalite during firing, thus resisting shivering and thermal shock failure.
Data
- Melting Point (MP): 3020F
- Firing Shrinkage
Cone 1: 5.2%
Cone 5: 6.7% - PCE: 26-27
- Ultimate Particle Size Distribution
10 microns: 61.5%
5: 51.5%
2: 40%
1: 31.5%
0.5: 22.5% - Water absorption
Cone 1: 6.6%
Cone 5: 3.4% - Melting Point (MP): 3020F
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="Jordan Fireclay" descrip="Low Iron Fireclay" generic="0" rawmineral="0" searchkey="Maryland Ball/Stoneware Clay" loi="0.00">
<families>
<family name="Clay Other"/>
</families>
<regions>
<region name="North America"/>
</regions>
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.200" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.500" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="1.990" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.200" tolerance=""/>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.200" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="20.180" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="67.230" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.710" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="6.780" tolerance=""/>
</volatiles>
<references>
<reference name="seealso" reason=""/>
</references>
<notes>
<note>A popular raw material for pottery clay bodies for many years.
This material contains natural flux to resist the growth of cristobalite during firing, thus resisting shivering and thermal shock failure.</note>
</notes>
<testdata>
<testitem testname="1" value="3020F"/>
<testitem testname="1" value="Cone 1: 5.2%
Cone 5: 6.7%"/>
<testitem testname="1" value="26-27"/>
<testitem testname="1" value="10 microns: 61.5%
5: 51.5%
2: 40%
1: 31.5%
0.5: 22.5%"/>
<testitem testname="1" value="Cone 1: 6.6%
Cone 5: 3.4%"/>
<testitem testname="1" value="3020F"/>
</testdata>
</material>
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