mineral

Aventurine

Aventurine (Silicon Dioxide with Fuchsite inclusions) - SiO2

Hardness: 6.5-7 (Mohs), Color: Translucent green with shimmering flecks (aventurescence), Luster: Vitreous to waxy, Crystal Structure: Trigonal, Cleavage: None

Hardness: 6

Identified June 24, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs), Color: Translucent green with shimmering flecks (aventurescence), Luster: Vitreous to waxy, Crystal Structure: Trigonal, Cleavage: None

Formation & geological history

Formed in metamorphic environments, specifically within quartz-rich schists or gneisses. The green color and shimmer are caused by platy inclusions of chromium-rich mica called fuchsite.

Uses & applications

Primarily used in jewelry (beads, cabochons), ornamental carvings, figurines, and as a popular stone in the gemstone collecting and metaphysical communities.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' referring to the discovery of aventurine glass or 'goldstone' in the 18th century, which looks similar to the natural mineral.

Field identification & locations

Identify by its characteristic 'shimmer' or sparkly luster (aventurescence) when rotated under light. Common locations include India (the primary source), Brazil, Russia, and Austria.

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mineral