mineral
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
AI-generated identification · may be incorrectHardness: 6.5-7 (Mohs); Color: Translucent green; Luster: Vitreous to waxy; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.64-2.69
- Hardness
- 6
- Color
- Translucent green
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 (Mohs); Color: Translucent green; Luster: Vitreous to waxy; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.64-2.69
Formation & geological history
Formed in igneous and metamorphic rocks (primarily quartzites) where silicate solutions crystallize over long periods, trapping chromium-rich fuchsite mica that gives the green hue.
Uses & applications
Extensively used for ornamental carvings, tumble stones, cabochons for jewelry, and as a decorative stone in landscaping and flooring.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' referencing the discovery of aventurine glass or 'goldstone' in the 18th century, which looks similar to this natural stone.
Field identification & locations
Identify in the field by its distinct green color and 'aventurescence' (a shimmering or glistening effect caused by platy mineral inclusions). Common locations include India, Brazil, Russia, and Austria.
