mineral

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Hardness: 7 on Mohs scale; Color: Green (from chrome-mica inclusions); Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.63 - 2.65

Hardness: 7 on Mohs scale
Color: Green (from chrome-mica inclusions)
Luster: Vitreous to waxy

Identified July 21, 2026More mineral →

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Physical properties

Formation & geological history

Metamorphic process; formed as a quartzite where chromium-rich mica (fuchsite) is present within the quartz matrix. Most deposits date to the Precambrian era.

Uses & applications

Used extensively in jewelry (beads, cabochons), ornamental carvings, crystal healing practices, and as a decorative stone in landscape design.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to the 18th-century discovery of aventurine glass (goldstone). The natural stone exhibits 'aventurescence', a shimmering or glistering effect caused by platy mineral inclusions.

Field identification & locations

Identify in the field by its green color and distinct internal shimmer (aventurescence) when rotated in light. Common locations include India (the primary source), Brazil, and Russia.

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