
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Hardness: 7 on Mohs scale; Color: Green with a shimmering or glistening effect (aventurescence); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline aggregate); Cleavage: None, exhibits a conchoidal fracture.
- Hardness
- 7 on Mohs scale
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 on Mohs scale; Color: Green with a shimmering or glistening effect (aventurescence); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline aggregate); Cleavage: None, exhibits a conchoidal fracture.
Formation & geological history
Formed in metamorphic or igneous rock environments where silica-rich fluids deposit microcrystalline quartz along with chromium-rich mica (fuchsite) platelets, giving it its characteristic green color and glistening effect.
Uses & applications
Popularly used as a gemstone for lapidary work, cabochons, carved figurines, decorative beads, tumbled stones, and holistic/metaphysical practices.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', referencing the accidental discovery of aventurine glass (goldstone) in the 18th century, which natural aventurine resembles.
Field identification & locations
Identified by its rich green hue combined with subtle metallic specks or shimmer caused by internal fuchsite mica flakes. Commonly mined in India, Brazil, Russia, and South Africa.
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