metamorphic

Likely mica-rich schist fragment

Mica schist; exact mineral identification is uncertain from the image

AI-generated identification · may be incorrect

Small, rough, foliated fragment with silvery reflective flakes and gray-brown areas, consistent with mica. Hardness and cleavage cannot be reliably determined from the photograph; mica has perfect basal cleavage and a Mohs hardness of about 2–3.

Identified October 6, 2026More metamorphic →

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Physical properties

Formation & geological history

Schist forms when clay-rich sedimentary or igneous rocks undergo regional metamorphism; its age depends on the source rock and metamorphic event and cannot be inferred here.

Uses & applications

Schist is used locally as decorative or building stone; this small fragment is mainly suitable for collecting or display.

Geological facts

The sparkling surfaces are likely aligned mica flakes, which give schist its characteristic sheen and layered texture.

Field identification & locations

Look for visible platy minerals and a tendency to split along foliation; mica schist occurs in metamorphic belts worldwide. The image is insufficient to confirm the identification.