IXL #39 Clay

Oxide	Analysis	Formula
CaO	9.64%	0.53
K2O	2.28%	0.07
MgO	4.51%	0.34
Na2O	1.08%	0.05
TiO2	0.47%	0.02
Al2O3	10.68%	0.32
SiO2	53.41%	2.73
Fe2O3	4.04%	0.08
LOI	13.12%	n/a
Oxide Weight		264.65
Formula Weight		304.62

Notes

A highly calcarious, low temperature, pale red burning clay. The clay portion is mostly illite with some montmorillonite and a fair amount of free silica. Was used in making brick. No longer available.

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.

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