mineral

Green aventurine quartz (likely)

Quartz, SiO₂, with fuchsite or other green mica inclusions

AI-generated identification · may be incorrect

Hardness 7 Mohs; translucent to opaque green, vitreous-to-waxy luster, granular massive texture, and no obvious cleavage. The rough, frosted surface and rounded edges suggest a tumbled or naturally water-worn piece; visible glitter may indicate aventurescence.

Identified August 26, 2026More mineral →

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Physical properties

Formation & geological history

Forms when silica-rich fluids crystallize quartz containing dispersed green fuchsite mica, chlorite, or similar inclusions, commonly in metamorphic environments. Green aventurine deposits are especially associated with India, Brazil, Russia, and Tanzania; exact age depends on locality.

Uses & applications

Used for carvings, cabochons, beads, ornamental objects, and inexpensive jewelry; occasionally sold as a lapidary rough or healing stone.

Geological facts

The specimen’s saturated emerald-green color and uniformly granular appearance are consistent with aventurine, though dyed glass or another green quartz variety cannot be excluded from an image alone.

Field identification & locations

Check for tiny reflective mica flashes, quartz-like hardness, and lack of bubbles or perfectly glassy conchoidal fracture; scratch testing should be performed only on an inconspicuous area. Common material is found in India and Brazil.