
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Hardness: 7 on Mohs scale; Color: Dull to translucent green; Luster: Vitreous to waxy with 'aventurescence' (shimmering effect); Crystal structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture).
- Hardness
- 7 on Mohs scale
- Color
- Dull to translucent green
- Luster
- Vitreous to waxy with 'aventurescence' (shimmering effect)
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Physical properties
Hardness: 7 on Mohs scale; Color: Dull to translucent green; Luster: Vitreous to waxy with 'aventurescence' (shimmering effect); Crystal structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture).
Formation & geological history
Forms in metamorphic rocks such as phyllites and schists, or in hydrothermal veins where quartz crystallizes with mica or hematite inclusions. Typically Proterozoic in age depending on the deposit location.
Uses & applications
Commonly used for ornamental carvings, jewelry beads, tumbled pocket stones, and architectural accents. Highly popular in the metaphysical and gemstone collecting community.
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 green shimmer caused by platy fuchsite mica inclusions. Commonly found in India, Brazil, and Russia. Collectors should look for even color distribution and strong aventurescence.
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