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Custer Feldspar

ID: custer-feldspar

Description

Potassium-based feldspathic mineral.

Chemical Analysis

OxideAnalysisFormulaTolerance
cao0.30%0.03-
k2o10.00%0.66-
na2o3.00%0.30-
al2o317.00%1.04-
sio268.50%7.13-
fe2o30.10%0.00-
Oxide Weight618.54
Formula Weight620.40

Alternate Names

  • Custer Spar