66-s Clay

Oxide	Analysis	Formula
CaO	0.20%	0.02
K2O	1.19%	0.06
MgO	0.80%	0.09
Na2O	0.60%	0.05
TiO2	0.70%	0.04
Al2O3	21.48%	1.00
SiO2	65.33%	5.16
Fe2O3	1.10%	0.03
LOI	8.59%	n/a
Oxide Weight		434.02
Formula Weight		474.81

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Ball Clay
Ball clays are abundant and very plastic and are used in all types of plastic forming bodies. They are not as white-burning or refractory as kaolins but lower in iron and fluxes than bentonites.

By Tony Hansen
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