Principio Stoneware

Description: Legacy stoneware from United Clay Mines

Oxide	Analysis	Formula
SiO2	59.40%	4.03
Al2O3	25.00%	1.00
Fe2O3	2.80%	0.07
TiO2	0.90%	0.05
CaO	0.30%	0.02
MgO	0.20%	0.02
K2O	2.10%	0.09
Na2O	0.70%	0.05
LOI	8.60%	n/a
Oxide Weight		372.91
Formula Weight		408.00

Related Information

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Typecodes

Stoneware Clay
These materials generally contain bentonite, ball clay, kaolin, feldspar, mica, quartz and some iron impurities. They can often be used as a body with few additives.

Data

% < 0.5 microns	52%
Drying Shrinkage	n/a
Firing Shrinkage	19% at cone 9
Water absorption	0% at cone 9
Dry M.O.R. (50% Silica)	820 psi

By Tony Hansen
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