metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Hardness: 7 Mohs; Color: Pale to dark green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific gravity: 2.63–2.65.
- Hardness
- 7 Mohs
- Color
- Pale to dark green
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 Mohs; Color: Pale to dark green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific gravity: 2.63–2.65.
Formation & geological history
Formed as a metamorphic rock (quartzite) composed of interlocking quartz grains with tiny scales of bright green fuchsite mica, which provides its characteristic sparkle or aventurescence.
Uses & applications
Commonly used in jewelry, ornamental carvings, cabochons, and as a popular stone for meditation and energy work collections.
Geological facts
The name Aventurine derives from the Italian 'a ventura', meaning 'by chance', originally referring to accidental discoveries of similar-looking glass (goldstone) before the mineral itself was named.
Field identification & locations
Look for a sugary, granular texture and a shimmering effect known as aventurescence. Large deposits are found in India, Brazil, Russia, and Austria.
