mineral
Mica
Phyllosilicate group (e.g., Biotite or Muscovite)
AI-generated identification · may be incorrectHardness of 2 to 2.5 on the Mohs scale, with a pearly to vitreous luster and perfect basal cleavage. Exhibits sheet-like crystal structures and colors ranging from clear to dark brown or black.
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Physical properties
Hardness of 2 to 2.5 on the Mohs scale, with a pearly to vitreous luster and perfect basal cleavage. Exhibits sheet-like crystal structures and colors ranging from clear to dark brown or black.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of cooling magma or the alteration of existing rocks under high pressure.
Uses & applications
Used widely in electrical insulators, cosmetics, paints, and construction materials due to its thermal resistance and insulating properties.
Geological facts
Mica sheets can be split into extremely thin, flexible layers while remaining physically and chemically stable.
Field identification & locations
Easily identified by its shiny, reflective flakes and characteristic sheet cleavage. Commonly found in pegmatites, schists, and granites worldwide.
