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Colored Stone 1992 Nov; 5(6):32-33
Of all of the minerals in the earth's crust, aluminosilicate feldspar is the most common. Feldspar is a handy industrial mineral used in making glass, plumbing fixtures, tile, and pottery. But it's also a gemstone--almost $1.5 million of which was mined last year in the United States.
OP; Journal Article
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Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division