mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Hardness: 7 on the Mohs scale. Color: Light to dark green due to fuchsite mica inclusions. Luster: Vitreous to greasy, often with a shimmering effect known as aventurescence. Crystal structure: Trigonal. Cleavage: None. Specific gravity: 2.65.
- Hardness
- 7 on the Mohs scale
- Color
- Light to dark green due to fuchsite mica inclusions
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Physical properties
Hardness: 7 on the Mohs scale. Color: Light to dark green due to fuchsite mica inclusions. Luster: Vitreous to greasy, often with a shimmering effect known as aventurescence. Crystal structure: Trigonal. Cleavage: None. Specific gravity: 2.65.
Formation & geological history
Forms in metamorphic environments, specifically in quartz veins and pegmatites, where chromium-rich mica (fuchsite) becomes trapped within growing quartz crystals during regional or contact metamorphism.
Uses & applications
Widely used in tumbling, carving, making beads, jewelry, and decorative objects. Popular in crystal healing and metaphysical practices.
Geological facts
The shimmering metallic appearance of aventurine is called aventurescence, caused by tiny flat reflective inclusions of minerals like fuchsite or hematite.
Field identification & locations
Can be identified by its characteristic green color and shimmering aventurescence under strong light. Commonly found in India, Brazil, Russia, and the United States.
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