Rock Identifier
Green Aventurine (Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — mineral
mineral

Green Aventurine

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

Hardness: 7 on Mohs scale; Color: Green; Luster: Vitreous to waxy; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.64-2.69; Often shows aventurescence (shimmer).

Hardness
7 on Mohs scale
Color
Green
Luster
Vitreous to waxy
Identified More mineral

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Physical properties

Hardness: 7 on Mohs scale; Color: Green; Luster: Vitreous to waxy; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.64-2.69; Often shows aventurescence (shimmer).

Formation & geological history

Formed in metamorphic rocks and magmatic environments where silica-rich fluids crystallize. Its green color is typically caused by inclusions of chrome-rich fuchsite mica.

Uses & applications

Primarily used for jewelry, lapidary arts, decorative carvings, and as a popular stone in the holistic and metaphysical community.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to glass produced by accident that resembled the stone's sparkly effect.

Field identification & locations

Look for a translucent to opaque green stone with tiny internal shimmering flakes. It is commonly found in India, Brazil, and Russia. Collectors value consistent color and strong shimmer.