gemstone

Green aventurine (likely)

Quartz variety, SiO₂, colored green by tiny inclusions—often fuchsite mica

AI-generated identification · may be incorrect

Polished, opaque-to-translucent dark green cabochon or carved piece. Quartz has Mohs hardness 7, vitreous luster, and trigonal crystal structure; no visible cleavage. The photo alone cannot confirm the green inclusion or distinguish it from other green stones.

Identified October 11, 2026More gemstone →

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Physical properties

Formation & geological history

Typically forms in silica-rich veins and metamorphic rocks; its quartz crystallized as fluids cooled, with green mineral inclusions incorporated during growth. Deposits occur in places including India, Brazil, and Russia.

Uses & applications

Used for beads, carvings, cabochons, and inexpensive jewelry; also collected as a decorative quartz variety.

Geological facts

Aventurine’s characteristic glitter, called aventurescence, comes from reflective mineral inclusions; it is not apparent in this image.

Field identification & locations

Check for fine reflective flecks and hardness: quartz can scratch glass, while a steel blade generally will not scratch it. The stone’s smooth, uniformly green appearance is consistent with polished aventurine but not diagnostic.