
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Hardness: 7 on Mohs scale; Color: Forest green to translucent light green; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Cleavage: None; Specific gravity: 2.64-2.69. It exhibits 'aventurescence' (a shimmering effect).
- Hardness
- 7 on Mohs scale
- Color
- Forest green to translucent light green
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 on Mohs scale; Color: Forest green to translucent light green; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Cleavage: None; Specific gravity: 2.64-2.69. It exhibits 'aventurescence' (a shimmering effect).
Formation & geological history
Formed in magmatic environments or through metamorphic processes where quartz experiences intense heat and pressure, allowing for the inclusion of platy mineral crystals like chromium-rich fuchsite mica.
Uses & applications
Primarily used for lapidary work, cabochons for jewelry, ornamental carvings, figurines, and as a popular stone for metaphysical or healing collection.
Geological facts
The name 'Aventurine' is derived from the Italian 'a ventura,' meaning 'by chance,' because of the accidental discovery of glass with copper inclusions in the 18th century that looked similar to this natural stone.
Field identification & locations
Identify by its characteristic green color and shimmering mica inclusions. Found commonly in India (largest producer), Brazil, and Russia. When raw, it looks like grainy green quartzite.
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