metamorphic
Green Aventurine
Aventurine Quartz (SiO2 containing Fuchsite)
Hardness: 7 Mohs, Color: Light to dark green, Luster: Vitreous to waxy, Crystal Structure: Trigonal (microcrystalline), Cleavage: None, Specific Gravity: 2.64-2.69, Features: Aventurescence (glittery effect)
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Physical properties
Hardness: 7 Mohs, Color: Light to dark green, Luster: Vitreous to waxy, Crystal Structure: Trigonal (microcrystalline), Cleavage: None, Specific Gravity: 2.64-2.69, Features: Aventurescence (glittery effect)
Formation & geological history
Formed during metamorphism of quartz-rich sediments where silica recrystallizes around inclusions of chrome-rich mica (fuchsite). Found in ancient metamorphic terrains.
Uses & applications
Used extensively in jewelry, ornamental carvings, aquarium decor, and polished stones for metaphysical practices.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura' meaning 'by chance', originally referring to the accidental discovery of aventurine glass. It is often called the 'Stone of Opportunity'.
Field identification & locations
Identify by its characteristic green color and 'aventurescence'—the metallic glitter caused by flat mineral inclusions. Common in India, Brazil, and Russia. Used as a budget alternative to jade.
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