metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Hardness: 6.5-7 on Mohs scale. Color: Pale green to forest green. Luster: Vitreous to waxy. Crystal structure: Trigonal/Hexagonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.63-2.69.
- Hardness
- 6
- Color
- Pale green to forest green
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 on Mohs scale. Color: Pale green to forest green. Luster: Vitreous to waxy. Crystal structure: Trigonal/Hexagonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.63-2.69.
Formation & geological history
Formed through the metamorphic transformation of sandstone into quartzite, where high pressure and temperature crystalline the silica while incorporating platy minerals like fuchsine mica to create the green hue and shimmer.
Uses & applications
Commonly used for ornamental carvings, jewelry (cabochons and beads), landscaping stones, and popular in the metaphysical and gemstone collecting markets.
Geological facts
Aventurine exhibits a unique shimmering effect known as 'aventurescence,' caused by the reflection of light from tiny inclusions of chrome-rich mica (fuchsite).
Field identification & locations
Identify by its characteristic green color and internal glitter-like reflections. It is often found in India, Brazil, Russia, and Tanzania. Collectors should look for even color distribution and a strong aventurescence.
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