Mica
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Mineral NameMica
Chemical FormulaKAl₂(AlSi₃O₁₀)(OH)₂
Mohs Hardness2.5
Crystal Systemmonoclinic
Lustervitreous
Streak Colorwhite
Cleavageperfect basal in one direction
Fractureuneven
Specific Gravity2.8
Colorswhite, silver, light brown
Transparencytranslucent
Type LocalityHunza Valley, Gilgit District, Baltistan, Gilgit-Baltistan (Northern Areas), Pakistan
Mineral GroupSilicates
Useselectrical insulator, filler in paints and plastics, cosmetics, decorative aggregate
Associated Mineralsgarnet, quartz, feldspar
Raritycommon
Description
A large mass of silvery-white to light brown mica, exhibiting its characteristic flaky, layered structure, with a dark red almandine garnet crystal embedded within it.
Geological Context
Muscovite mica is a common rock-forming mineral found in metamorphic rocks like schists and gneisses, as well as in some granitic igneous rocks, particularly pegmatites.
