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Calvert Clay

Red Burning Clay

Chemistry CaO 0.300 K2O 2.000 MgO 0.800 Na2O 0.410 TiO2 1.210 Al2O3 23.800 SiO2 57.790 Fe2O3 5.710

Volatiles LOI 7.980

Links to Other Materials

• Redart - Alternative
• Cache

Miscellaneous

• Family: Clay Other
• Region: North America
• Mined At: Unspecified
• Raw Mineral: No
• Generic: No

Notes

A red burning material used in the formulation of clay bodies to provide maturity and color at all temperature ranges.

Data

• Firing Shrinkage
  Cone 1: 8.9% total
  Cone 5: 9.1 (overfired)
• PCE: 29-30
• Ultimate Particle Size Distribution
  10 microns: 89%
  5: 84%
  2: 67%
  1: 54%
  0.5: 43%
• Water absorption
  Cone 1: 1.4%
  Cone 5: 0.3

Authors

• Tony Hansen (Owner)

XML

<?xml version="1.0" encoding="UTF-8"?>
<material name="Calvert Clay" descrip="Red Burning Clay" generic="0" rawmineral="0" searchkey="" 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="0.300" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.800" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="2.000" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.410" tolerance=""/>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.210" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="23.800" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="57.790" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="5.710" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="7.980" tolerance=""/>
</volatiles>
<references>
<reference name="seealso" reason=""/>
</references>
<notes>
<note>A red burning material used in the formulation of clay bodies to provide maturity and color at all temperature ranges.</note>
</notes>
<testdata>
<testitem testname="1" value="Cone 1: 8.9% total
Cone 5: 9.1 (overfired)"/>
<testitem testname="1" value="29-30"/>
<testitem testname="1" value="10 microns: 89%
5: 84%
2: 67%
1: 54%
0.5: 43%"/>
<testitem testname="1" value="Cone 1: 1.4%
Cone 5: 0.3"/>
</testdata>
</material>

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