| Muscovite |
Articles about Muscovite |
Information AboutMuscovite |
| CATEGORIES ABOUT MUSCOVITE | |
| potassium minerals | |
| aluminium minerals | |
| hydroxide minerals | |
| phyllosilicates | |
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Muscovite, also known as of 2 - 2.25 and a Specific Gravity of 2.76 - 3. It can be colorless or tinted through Grays , Browns , Greens , Yellows , or rarely Violet or Red , and can be transparent or translucent. The green Chromium rich variety is called ''Fuchsite''. Muscovite is the most common mica, found in Granite s, Pegmatite s, Gneiss es and Schist s, and as a contact Metamorphic Rock or as a secondary Mineral resulting from the alteration of Topaz , Feldspar , Kyanite , etc. In pegmatites, it is often found in immense sheets that are commercially valuable. Muscovite is in demand for the manufacture of Fireproofing and insulating materials and to some extent as a Lubricant . The name of muscovite comes from Muscovy-glass, a name formerly used for the mineral because of its use in Russia for Window s. Muscovite is anisotropic, and has quite a high birefringence. Its crystal system is monoclinic. SEE ALSO |
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