mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
Hardness: 6.5-7.0 (Mohs scale); Color: Pale to dark green with a shimmery effect; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific Gravity: 2.6-2.7
- Hardness
- 6
- Color
- Pale to dark green with a shimmery effect
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7.0 (Mohs scale); Color: Pale to dark green with a shimmery effect; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific Gravity: 2.6-2.7
Formation & geological history
Formed in magmatic rocks like pegmatites or in hydrothermal veins, and also commonly found in metamorphic rocks. The green color is typically caused by inclusions of chromium-rich fuchsite mica.
Uses & applications
Predominantly used for ornamental carvings, jewelry (beads, cabochons), and as a popular stone for meditation and crystal collecting.
Geological facts
Aventurine displays a unique optical phenomenon called 'aventurescence', which is the glittering effect caused by tiny platy mineral inclusions. It is often called the 'Stone of Opportunity'.
Field identification & locations
Collectors identify it by its granular texture and shimmering inclusions. It is commonly found in India, Brazil, and Russia. In the field, look for a quartz-like appearance with a distinct green sparkle.
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