mineral

Green Aventurine

Quartz (with Fuchsite inclusions) - SiO2

Hardness: 6.5-7 (Mohs scale), Color: Shimmering green, Luster: Vitreous to waxy, Crystal Structure: Hexagonal (Trigonal), Cleavage: None, Specific Gravity: 2.64-2.69

Hardness: 6

Identified June 12, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs scale), Color: Shimmering green, Luster: Vitreous to waxy, Crystal Structure: Hexagonal (Trigonal), Cleavage: None, Specific Gravity: 2.64-2.69

Formation & geological history

Formed primarily in metamorphic rocks through the high-pressure recrystallization of sandstone into quartzite, where mica crystals (fuchsite) often align to create a shimmering effect. Most specimens are from the Proterozoic eon.

Uses & applications

Frequently used for decorative carvings, ornamental figurines, cabochon jewelry, and as a popular 'luck' stone in metaphysical collecting.

Geological facts

Aventurine gets its name from the Italian 'a ventura,' meaning 'by chance.' It is known for its 'aventurescence,' an optical shimmer caused by tiny platy inclusions of green chromium-rich mica.

Field identification & locations

Identify by its characteristic sparkly interior shimmer (aventurescence) and its ability to scratch glass. It is commonly found in India, Brazil, and Russia. Collectors should look for the evenness of color and intensity of the metallic-looking inclusions.

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