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alkali-feldspar
alkali-feldspar

Alkali feldspar
The alkali feldspar group are those feldspar minerals rich in the alkali elements potassium and sodium. The alkali feldspars include: albite, anorthoclase, microcline, orthoclase and sanidine.

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Last updated on Sunday June 29, 2008 at 09:45:12 PDT (GMT -0700)
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