metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Hardness: 6.5-7.0 on Mohs scale; Color: Green (from Fuchsite); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Aventurescence: Metallic glitters caused by mineral inclusions.
- Hardness
- 6
- Color
- Green (from Fuchsite)
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7.0 on Mohs scale; Color: Green (from Fuchsite); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Aventurescence: Metallic glitters caused by mineral inclusions.
Formation & geological history
Formed through the regional metamorphism of sandstone into quartzite. The characteristic green color comes from the presence of chromium-rich mica called fuchsite during the recrystallization process.
Uses & applications
Predominantly used for ornamental purposes, jewelry (beads, cabochons), carvings, figurines, and as a popular stone in metaphysical/crystal healing collections.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance.' This refers to the lucky discovery of aventurine glass (goldstone) in the 18th century, which looks similar to this natural stone.
Field identification & locations
Identify by its 'aventurescence' (shimmering effect inside the stone) and its grainy, quartzite-like texture. Commonly found in India, Brazil, Russia, and Austria. Unlike emerald or jade, it usually has a distinct sparkly or speckled appearance.
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