mineral

Green aventurine (likely)

Quartz variety; silicon dioxide (SiO₂) with fuchsite mica inclusions

AI-generated identification · may be incorrect

Polished/tumbled, translucent to opaque green body with tiny dark inclusions and weak aventurescence; Mohs hardness 6.5–7, vitreous to waxy luster, no prominent cleavage, specific gravity about 2.65. The smooth oval is human-shaped but remains geological material.

Identified September 10, 2026More mineral →

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At a glance

Common name: Green aventurine (likely)
Scientific name: Quartz variety; silicon dioxide (SiO₂) with fuchsite mica inclusions
Category: mineral
Identified: September 10, 2026
Method: Standard

AI Estimated Value

About $3–$20 for a small polished cabochon; $20–$75 for larger, attractive natural pieces. Exact identification and value require testing and locality information.

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

Forms in quartz-rich metamorphic or hydrothermal rocks, colored commonly by chromium-bearing fuchsite or other green minerals. Precise age depends on locality; commercial material is mined mainly from India, Brazil, Russia, and Tanzania.

Uses & applications

Used for beads, cabochons, carvings, ornaments, and inexpensive jewelry; also marketed in decorative and metaphysical collections.

Geological facts

Natural aventurine usually shows mica glitter when rotated under light; a uniform, glassy green appearance may indicate dyed quartz, chalcedony, or glass imitation.

Field identification & locations

Identify by hardness, quartz-like cool feel, lack of bubbles, and resistance to scratching by a steel knife (though testing can damage it); inspect with magnification for flaky mica and natural inclusions. Common sources include India and Brazil.