mineral
Aventurine
Silicon dioxide (SiO2) with inclusions
Hardness: 6.5-7 (Mohs scale); Color: Green (due to Fuchsite); Luster: Vitreous to waxy; Crystal structure: Trigonal; Specific gravity: 2.64-2.69; Diaphaneity: Translucent to opaque
- Hardness
- 6
- Color
- Green (due to Fuchsite)
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 (Mohs scale); Color: Green (due to Fuchsite); Luster: Vitreous to waxy; Crystal structure: Trigonal; Specific gravity: 2.64-2.69; Diaphaneity: Translucent to opaque
Formation & geological history
Formed in metamorphic environments where quartz and mica recrystallize under pressure and heat. Common in metamorphic schists.
Uses & applications
Used primarily in jewelry, ornamental carvings, aquarium decor, and as a popular stone in crystal healing practices.
Geological facts
Aventurine is famous for its 'aventurescence,' a shimmering effect caused by platy mineral inclusions (usually Fuchsite chrome mica) that reflect light.
Field identification & locations
Identify in the field by its grainy quartz texture and shimmering internal sparkles. Commonly found in India, Brazil, and Russia. Used by collectors as an affordable semi-precious stone.
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Schist
Schist
Metamorphic
Potassium Feldspar (Orthoclase)
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Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
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