mineral
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
Hardness: 7 on Mohs scale. Color: Light to dark green, sometimes with a silvery-green or golden sheen (aventurescence). Luster: Vitreous to greasy. Crystal Structure: Trigonal. Cleavage: None. Specific Gravity: 2.65.
- Hardness
- 7 on Mohs scale
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 7 on Mohs scale. Color: Light to dark green, sometimes with a silvery-green or golden sheen (aventurescence). Luster: Vitreous to greasy. Crystal Structure: Trigonal. Cleavage: None. Specific Gravity: 2.65.
Formation & geological history
Formed in metamorphic environments, particularly quartz-rich rocks where chromium-bearing mica (fuchsite) precipitates alongside quartz crystals during regional or contact metamorphism.
Uses & applications
Widely used in making jewelry, carved figurines, decorative items, and tumbled stones for crystal healing and mineral collections.
Geological facts
The shimmering effect, known as aventurescence, is caused by the reflection of light from tiny flat inclusions of fuchsite or other minerals trapped inside the quartz matrix during formation.
Field identification & locations
Easily identified by its characteristic green color combined with a glistening metallic sheen. Commonly sourced from India, Brazil, Russia, and the United States.
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