mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Hardness: 6.5-7 (Mohs scale); Color: Light to dark green with a shimmering effect (aventurescence); Luster: Vitreous to waxy; Crystal Structure: Trigonal (hexagonal); Cleavage: None; Specific Gravity: 2.63-2.65.

Hardness: 6
Luster: Vitreous to waxy

Identified February 16, 2026More mineral →

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Physical properties

Formation & geological history

Formed in magmatic and metamorphic environments where quartz crystallizes and incorporates platy mineral inclusions like chromium-rich mica (Fuchsite). It is found in deposits dating back millions of years, often in metamorphic rocks.

Uses & applications

Used widely in lapidary work for cabochons, beads, and figurines; popular in the jewelry industry for affordable accessories; used in construction as an ornamental stone in countertops or aquariums; highly valued in the metaphysical and gem collecting communities.

Geological facts

The name comes from the Italian word 'a ventura,' meaning 'by chance,' referencing the accidental discovery of 'aventurine glass' in the 18th century. It is known for its distinct 'aventurescence,' which is the sparkling effect caused by light reflecting off tiny inclusions within the stone.

Field identification & locations

Identify in the field by its grainy quartz texture and the presence of 'spangles' or sparkles when rotated under light. Common locations include India (the primary source), Brazil, Russia, and Austria. Collectors should look for even color distribution and strong translucency.

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