metamorphic
Aventurine
Aventurine Quartz (SiO2 + Fuschite inclusions)
Hardness: 6.5-7 (Mohs); Color: Green with silvery-white speckles; Luster: Vitreous to waxy; Structure: Hexagonal (trigonal); Grainy texture with platy inclusions of mica.
- Hardness
- 6
- Color
- Green with silvery-white speckles
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 (Mohs); Color: Green with silvery-white speckles; Luster: Vitreous to waxy; Structure: Hexagonal (trigonal); Grainy texture with platy inclusions of mica.
Formation & geological history
Formed as a metamorphic rock (quartzite) containing inclusions of green fuchsite mica. These inclusions create the 'aventurescence' effect through the scattering of light.
Uses & applications
Used primarily in jewelry making, ornamental carvings, figurines, and as a popular stone for chakra healing and metaphysical collecting.
Geological facts
The name comes from the Italian 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of aventurine glass in the 18th century.
Field identification & locations
Identify by its distinctive green color, grainy quartz texture, and sparkling mica inclusions. Commonly found in India, Brazil, and Russia. Often found as rounded river stones in specific regions.
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