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Rotten Stone

Description: FELDSPAR

Oxide Analysis Formula Tolerance
K2O 4.30% 0.24
MgO 2.90% 0.38
Na2O 4.30% 0.37
Al2O3 17.70% 0.93
SiO2 60.65% 5.40
Fe2O3 9.04% 0.30
LOI 1.09%n/a
Oxide Weight 528.93
Formula Weight 534.76

Notes

A soft material resulting from the decomposition of siliceous limestone, or shelly sandstone, whose CaO component has been mostly dissolved by water. Contains V and Ti impurities.

Related Information

Links

Typecodes Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies.

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