metamorphic

Likely muscovite mica schist

Muscovite-rich mica schist; muscovite KAl₂(AlSi₃O₁₀)(OH)₂

AI-generated identification · may be incorrect

Pale pink-lavender, silvery pearly sheen, and thin sheet-like cleavage suggest mica; muscovite is Mohs 2–2.5, with monoclinic crystals. The small fragment is insufficient to confirm the rock identification or measure specific gravity.

Identified September 27, 2026More metamorphic →

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Physical properties

Formation & geological history

Mica schist forms when clay-rich sedimentary rock is regionally metamorphosed, aligning mica flakes into a foliated texture. Its age depends on its source locality and cannot be determined from the image.

Uses & applications

Mica is used in electrical and thermal insulation, cosmetics, and fillers; mica schist is mainly a collector specimen or decorative stone.

Geological facts

Muscovite splits into thin, flexible, transparent sheets, a property historically used for window panes and furnace viewing windows.

Field identification & locations

Look for sparkling, aligned mica flakes and foliation; common in metamorphic belts worldwide. A photo alone cannot distinguish schist from a mica-rich mineral fragment.