metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Hardness: 7 (Mohs); Color: Pale to dark green with 'aventurescence'; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Specific Gravity: 2.6-2.7
- Hardness
- 7 (Mohs)
- Color
- Pale to dark green with 'aventurescence'
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 (Mohs); Color: Pale to dark green with 'aventurescence'; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Specific Gravity: 2.6-2.7
Formation & geological history
Formed in metamorphic rocks (quartzite) through the cooling of magma or hydrothermal activity where mica (fuchsite) particles align to create a shimmering effect.
Uses & applications
Used widely for ornamental carvings, tumbled stones, jewelry (beads, cabochons), and as a popular stone for meditation and energy work collections.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' referencing the accidental discovery of aventurine glass in the 18th century.
Field identification & locations
Identify by its characteristic green color and shimmering mica inclusions (glittery specks) when rotated under light. Commonly found in India, Brazil, and Russia.
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