gemstone
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Hardness: 7 Mohs; Color: Pale to dark green with a shimmering effect (aventurescence); Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None.
- Hardness
- 7 Mohs
- Color
- Pale to dark green with a shimmering effect (aventurescence)
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 Mohs; Color: Pale to dark green with a shimmering effect (aventurescence); Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None.
Formation & geological history
Formed in metamorphic rocks where quartz is subjected to heat and pressure, with the characteristic green color coming from inclusions of Chromium-rich Fuchsite mica.
Uses & applications
Primarily used in jewelry (beads, cabochons), ornamental carvings, and as a popular stone in metaphysical collection practices.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of goldstone glass in the 18th century which this mineral resembles.
Field identification & locations
Identify by its characteristic 'aventurescence' (a metallic glitter caused by mica inclusions) and its waxy luster. Commonly found in India, Brazil, and Russia.
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