mineral

Green Aventurine

SiO2 (Silicon Dioxide with inclusions of Fuchsite)

AI-generated identification · may be incorrect

Hardness: 7 (Mohs scale), Color: Translucent to opaque green, Luster: Vitreous to waxy, Crystal Structure: Trigonal/Microcrystalline, Cleavage: None, Specific Gravity: 2.64-2.69

Identified July 21, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale), Color: Translucent to opaque green, Luster: Vitreous to waxy, Crystal Structure: Trigonal/Microcrystalline, Cleavage: None, Specific Gravity: 2.64-2.69

Formation & geological history

Formed in metamorphic rocks (phyllites or schists) where quartz crystallization occurs alongside chrome-rich micas like fuchsite. This process typically happens over millions of years during regional metamorphism.

Uses & applications

Commonly used for lapidary work including beads, cabochons, carvings, and tumbled stones. Often used in jewelry and for ornamental display.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', which originally referred to a type of Italian glass (Goldstone) discovered accidentally that looked like this natural stone.

Field identification & locations

Check for 'aventurescence,' a shimmering effect caused by plate-like inclusions. Found frequently in India, Brazil, and Russia. Collectors look for uniform color and strong glitter.