mineral
Muscovite
KAl2(AlSi3O10)(OH)2
AI-generated identification · may be incorrectHardness of 2-2.5 on the Mohs scale, transparent to translucent with pearly to vitreous luster, forming in monoclinic crystal systems with perfect basal cleavage.
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Physical properties
Hardness of 2-2.5 on the Mohs scale, transparent to translucent with pearly to vitreous luster, forming in monoclinic crystal systems with perfect basal cleavage.
Formation & geological history
Forms in igneous rocks like granites and pegmatites, as well as metamorphic schists and gneisses through regional metamorphism.
Uses & applications
Used in electrical insulation, paints, plastics, joint cements, and as a filler material in various industrial applications.
Geological facts
Muscovite is the most common member of the mica family and was historically used as a glass substitute in windows.
Field identification & locations
Easily identified by its distinct sheet-like cleavage, flexible elastic flakes, and transparent pearly appearance, commonly found in pegmatite veins.
