mineral

Green aventurine

Quartzite dominated by quartz (SiO₂), commonly containing fuchsite mica or other inclusions

AI-generated identification · may be incorrect

Typically medium green with fine glittery aventurescence, though this polished piece appears subtly sparkly; Mohs hardness 6.5–7, vitreous to dull luster, granular quartz mosaic, no prominent cleavage, specific gravity about 2.6–2.7.

Identified August 19, 2026More mineral →

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Physical properties

Formation & geological history

Forms when quartz-rich sediment or rock recrystallizes into quartzite, with chromium-bearing fuchsite producing the green color; deposits are generally Precambrian to younger metamorphic terrains.

Uses & applications

Used for beads, cabochons, carvings, ornamental stone, countertops, and inexpensive decorative objects.

Geological facts

Aventurine’s characteristic shimmer comes from reflected light off tiny plate-like inclusions, called aventurescence; stronger sparkle generally increases desirability.

Field identification & locations

Commonly found in India, Brazil, Russia, Tanzania, and China. Identify it by its green color, quartz-like hardness, granular texture, and glitter; it should scratch glass but not quartz. The photograph alone cannot exclude dyed quartz or another green stone.