Ceramic Materials

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Ocmulgee Red Clay

HIGH IRON CLAY

OxideAnalysisFormula
CaO0.37%0.031
MgO0.79%0.092
K2O1.29%0.064
Na2O0.36%0.027
TiO21.20%0.070
Al2O321.80%1.000
SiO253.90%4.196
Fe2O36.40%0.187
MnO0.23%0.015
LOI13.70
Oxide Weight403.98
Formula Weight468.11
This is the chemistry of the material (the formula compares numbers of molecules, the analysis compares them by weight). In glazes, the composite chemistry of the mix is the main factor shaping fired properties (e.g. color, melting temperature, surface). In bodies we are interested in their physical properties (e.g. shrinkage, porosity, strength), these are a product of the mineralogy of the materials.

A sandy, coarse, iron bearing sedimentary clay. Used in brick and pipe manufacture.


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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Ocmulgee Red Clay" descrip="HIGH IRON CLAY" searchkey="" loi="0.00" casnumber="70694-09-6"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.370" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.790" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="1.290" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.360" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.200" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="21.800" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="53.900" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="6.400" tolerance=""/> <oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.230" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="13.700" tolerance=""/> </volatiles> </material>


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