metamorphic

Golden mica schist

Mica-rich schist, likely muscovite schist (quartz and mica; exact minerals cannot be confirmed from the image)

AI-generated identification · may be incorrect

Golden, strongly foliated specimen with a shiny, flaky surface, consistent with mica; muscovite has Mohs hardness 2–2.5 and a platy monoclinic crystal structure with perfect basal cleavage. Color and appearance alone are not enough to determine its composition or specific gravity.

Identified September 23, 2026More metamorphic →

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Physical properties

Formation & geological history

Formed when clay-rich sedimentary rock was subjected to heat and pressure, producing aligned mica flakes; its age and precise formation setting cannot be identified from the image.

Uses & applications

Schist is used as decorative stone, landscaping material, and sometimes as a source of mica; this small piece is mainly suited to collecting or display.

Geological facts

The glittering sheen comes from reflected light on aligned mica flakes, a defining feature of schistose foliation.

Field identification & locations

Look for visible, aligned flakes and a tendency to split along foliation; similar mica schists occur in metamorphic belts worldwide. Confirm identification with mineral or laboratory tests if needed.