
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Hardness: 7 on Mohs scale; Color: Forest green to pale green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal (microcrystalline); Cleavage: None; Specific Gravity: 2.64-2.69; Features 'aventurescence' (a shimmering effect).
- Hardness
- 7 on Mohs scale
- Color
- Forest green to pale green
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 on Mohs scale; Color: Forest green to pale green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal (microcrystalline); Cleavage: None; Specific Gravity: 2.64-2.69; Features 'aventurescence' (a shimmering effect).
Formation & geological history
Formed in metamorphic rocks and certain igneous environments where silica-rich fluids crystallize. The green color and shimmer are caused by platy inclusions of green chrome-mica called fuchsite.
Uses & applications
Predominantly used for jewelry, cabochons, tumbled stones, ornamental carvings, and 'healing' crystal collections.
Geological facts
Aventurine is often called the 'Stone of Opportunity' and is frequently mistaken for jade, though it is harder and has a distinct internal shimmer. The name comes from the Italian 'a ventura,' meaning 'by chance.'
Field identification & locations
Identify in the field by its hardness (scratches glass), green color, and the presence of tiny glittering specks of mica within the stone. Found commonly in India, Brazil, and Russia.
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