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Chesterfield Feldspar

Description: Potash Feldspar

Oxide Analysis Formula Tolerance
CaO 0.30% 0.03
K2O 8.50% 0.58
Na2O 3.75% 0.39
Al2O3 16.34% 1.03
SiO2 70.75% 7.54
Fe2O3 0.07% -
LOI 0.29%n/a
Oxide Weight 638.90
Formula Weight 640.76

Notes

Mined in Chesterfield County, Virginia.

Related Information

Links

Materials Custer Feldspar
The most common potash feldspar used in ceramics in North America. While having been a standard for many decades its supply appears in doubt in 2024.
Materials G-200 Feldspar
Typecodes Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies.
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