mineral

Green Aventurine

Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Green; Luster: Vitreous to waxy; Crystal Structure: Trigonal (hexagonal); Cleavage: None; Specific Gravity: 2.64-2.69; Features 'aventurescence' (a shimmering effect).

Hardness: 7 on Mohs scale
Color: Green
Luster: Vitreous to waxy

Identified June 16, 2026More mineral →

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Physical properties

Formation & geological history

Formed in metamorphic rocks and magmatic environments. The green color comes from inclusions of chromium-rich mica known as fuchsite. Most deposits are found in pre-Cambrian rock layers.

Uses & applications

Commonly used for jewelry (beads, cabochons), ornamental carvings, figurines, and as a popular pocket stone for collectors and metaphysical practitioners.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance,' originally referring to the accidental discovery of aventurine glass (goldstone) in the 18th century. It is often mistaken for jade but can be distinguished by its shimmering inclusions.

Field identification & locations

Identify by its characteristic green color and shimmering mica-like specks under light. Primarily found in India (the largest producer), Brazil, and Russia. Collectors should look for even distribution of color and strong aventurescence.