metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
AI-generated identification · may be incorrectHardness: 6.5 - 7 on Mohs scale; Color: Green with a characteristic shimmer (aventurescence); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.6 - 2.7.
- Hardness
- 6
- Color
- Green with a characteristic shimmer (aventurescence)
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5 - 7 on Mohs scale; Color: Green with a characteristic shimmer (aventurescence); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.6 - 2.7.
Formation & geological history
Formed in metamorphic environments where quartz-rich sediments or rocks are subjected to high pressure and temperature. The green color comes from inclusions of chromium-rich mica called fuchsite. Most deposits are found in Precambrian metamorphic rocks.
Uses & applications
Commonly used for lapidary work, jewelry (beads, cabochons), carvings, decorative stones, and in the metaphysical community as a 'stone of opportunity'.
Geological facts
The name 'aventurine' is derived from the Italian 'a ventura,' meaning 'by chance.' This refers to the accidental discovery of 'aventurine glass' in the 18th century, which looked like this natural stone.
Field identification & locations
Identify by its distinct green color and the sparkling effect caused by tiny mica flakes inside. Most commercial material is sourced from India and Brazil. In the field, look for quartzite outcrops with a greenish hue.
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