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Feldspar, Custer Potash

$6.95

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This is one of the main feldspars used in the ceramic industry in North America. A feldspar used in glazes and clay bodies that is low in soda and high in potash content. Custer Feldspar is mined in Custer, South Dakota.

Synonyms: Potspar, Potash, Custer Spar

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