mineral

Polished green aventurine (likely)

Aventurine quartz, SiO₂, colored by fuchsite or other inclusions

AI-generated identification · may be incorrect

Green, polished, translucent to opaque, with a subtle glittery sheen; quartz has Mohs hardness 7, trigonal crystal structure, vitreous luster, and no cleavage. The smooth oval shape obscures diagnostic surface details, so identification is tentative.

Identified October 13, 2026More mineral →

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Physical properties

Formation & geological history

A natural quartz variety formed as silica-rich fluids crystallized in veins or cavities, with green mica inclusions; specimens commonly come from India, Brazil, and Russia. Its geological age depends on the deposit.

Uses & applications

Used for beads, carvings, cabochons, decorative objects, and inexpensive jewelry.

Geological facts

Aventurine’s characteristic shimmer, called aventurescence, comes from reflective mineral inclusions; fuchsite mica commonly creates the green color.

Field identification & locations

Look for a fine, scattered sparkle and hardness sufficient to scratch glass; distinguish it from dyed stones by checking for color concentrated in cracks. Polished palm stones of this size commonly sell for about $5–$25 USD.