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M&M Ball Clay

Oxide Analysis Formula
SiO2 47.90% 2.56
Al2O3 31.70% 1.00
Fe2O3 1.00% 0.02
TiO2 1.00% 0.04
CaO 0.20% 0.01
MgO 0.50% 0.04
K2O 0.50% 0.02
Na2O 2.40% 0.12
Oxide Weight 274.15
Formula Weight 321.01

Related Information


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.
Typecodes 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.


Drying Shrinkage5.0%
Firing Shrinkage13% at cone 9
Dry M.O.R. (50% Silica)510 psi

By Tony Hansen

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