Rock Identifier
Green Aventurine (Quartz (SiO2) with fuchsite inclusions) — mineral
mineral

Green Aventurine

Quartz (SiO2) with fuchsite inclusions

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, green color due to chromium-rich micas, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, and a specific gravity of 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, green color due to chromium-rich micas, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, and a specific gravity of 2.65.

Formation & geological history

Forms in metamorphic environments and hydrothermal veins where silica-rich solutions precipitate quartz containing tiny flakes of fuchsite or other minerals.

Uses & applications

Widely used for tumbled stones, cabochons, carvings, and jewelry, as well as valued by collectors for its sparkling aventurescence.

Geological facts

The sparkling effect, known as aventurescence, is caused by light reflecting off the tiny flat mineral inclusions suspended inside the quartz matrix.

Field identification & locations

Easily identified by its characteristic translucent green body and metallic shimmer, commonly sourced from India, Brazil, Russia, and the USA.