gemstone
Green Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale), Color: Shimmering green, Luster: Vitreous to waxy, Crystal structure: Trigonal/Microcrystalline, Cleavage: None, Specific gravity: 2.64-2.69
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Physical properties
Hardness: 7 (Mohs scale), Color: Shimmering green, Luster: Vitreous to waxy, Crystal structure: Trigonal/Microcrystalline, Cleavage: None, Specific gravity: 2.64-2.69
Formation & geological history
Formed in metamorphic environments where silica-rich fluids permeate through rocks containing mica, creating the characteristic spangled appearance known as aventurescence. Primarily formed during regional metamorphism.
Uses & applications
Widely used in jewelry (beads, pendants, cabochons), carved into figurines, and used as a popular healing or decorative stone in the metaphysical community.
Geological facts
The name comes from the Italian 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of aventurine glass in the 18th century.
Field identification & locations
Identify by its 'aventurescence' (metallic glints caused by mica inclusions). It is commonly found in India, Brazil, and Russia. Unlike green quartz, aventurine has distinct internal grains/flakes.
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