MICA By James B. Hedrick Mica is a group of phyllosilicate minerals that have a layered or platy texture. The commercially important micas are muscovite and phlogopite. Composed of tetrahedral-octahedraltetrahedral layer

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Date: 1997-09-30 09:05:19 Natural resources Mica Phlogopite Sericite Shear Muscovite Phyllosilicates Geology Crystallography		MICA By James B. Hedrick Mica is a group of phyllosilicate minerals that have a layered or platy texture. The commercially important micas are muscovite and phlogopite. Composed of tetrahedral-octahedraltetrahedral layer Add to Reading List Source URL: minerals.usgs.gov Download Document from Source Website File Size: 64,93 KB Share Document on Facebook