mineral

Raw greenish mica-rich mineral specimen

Likely muscovite mica with quartz or feldspar inclusions; exact identification requires testing

AI-generated identification · may be incorrect

Pale green-gray, translucent to opaque, pearly/glassy luster, and prominent sheet-like cleavage typical of mica. Muscovite has Mohs hardness 2–2.5, while associated quartz is 7; mica has monoclinic crystals and perfect basal cleavage.

Identified August 18, 2026More mineral →

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At a glance

Common name: Raw greenish mica-rich mineral specimen
Scientific name: Likely muscovite mica with quartz or feldspar inclusions; exact identification requires testing
Category: mineral
Identified: August 18, 2026
Method: Standard

AI Estimated Value

About $2–$15 for a common hand specimen; attractive large crystals or unusual green fuchsite-bearing material may sell for $20–$100.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Likely formed in a granitic pegmatite or metamorphic schist during slow cooling or regional metamorphism, commonly in Precambrian to younger continental crust. The apparent golden-green color may reflect alteration or iron-bearing inclusions.

Uses & applications

Mica is used in electrical insulation, paints, drilling mud, cosmetics, and decorative specimens; quartz-bearing pieces may be collected but are usually low-value.

Geological facts

Mica can be split into flexible, elastic sheets only fractions of a millimeter thick. Muscovite is generally colorless or silvery, whereas green coloration may indicate fuchsite or altered mica.

Field identification & locations

Look for elastic flakes, perfect splitting into thin sheets, and a pearly sheen; a fingernail may scratch the mica. Common sources include India, Brazil, Russia, Madagascar, and pegmatites worldwide.