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Talc 2C

Oxide Analysis Formula
SiO2 46.41% 0.94
Al2O3 9.52% 0.11
TiO2 0.20% -
Fe2O3 1.90% 0.01
CaO 0.70% 0.02
MgO 32.47% 0.98
LOI 8.80%n/a
Oxide Weight 111.47
Formula Weight 122.22

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Materials Talc
A source of MgO for ceramic glazes, a flux or thermal expansion additive in clay bodies, also used in the manufacture of cordierite.
Typecodes Flux Source
Materials that source Na2O, K2O, Li2O, CaO, MgO and other fluxes but are not feldspars or frits. Remember that materials can be flux sources but also perform many other roles. For example, talc is a flux in high temperature glazes, but a matting agent in low temperatures ones. It can also be a flux, a filler and an expansion increaser in bodies.
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