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Indiana Red Clay

Oxide Analysis Formula
SiO2 65.00% 6.45
Al2O3 17.10% 1.00
TiO2 1.20% 0.09
Fe2O3 6.70% 0.25
CaO 0.30% 0.03
MgO 1.10% 0.16
K2O 2.80% 0.18
Na2O 0.60% 0.06
LOI 0.20%n/a
Oxide Weight 565.47
Formula Weight 597.75

Notes

A smooth plastic red burning earthenware clay with excellent drying properties. It fires very vitreous by cone 02.

Related Information

Links

Typecodes Clay Other
Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically.

Data

Firing Shrinkage Cone 06: 1% Cone 02: 7% Cone 2: 8%
Modulus of Rupture - Dry 300-400 (Dry)
Pyrometric Cone Equivalent 19
Surface Area (m2/gm) 13
Water absorption Cone 06: 15% Cone 02: 2% Cone 2: 0%
pH for dry powder 9.0 @10% solids
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