mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Hardness of 7 on the Mohs scale, pale to dark green color, vitreous to greasy luster, trigonal crystal system, lacks cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, pale to dark green color, vitreous to greasy luster, trigonal crystal system, lacks cleavage, specific gravity of 2.65.
Formation & geological history
Forms in metamorphic environments, specifically in quartz veins, pegmatites, and schists, often where hydrothermal fluids rich in silica and chromium interact with existing rock.
Uses & applications
Widely used in gemstone carvings, tumbled stones, jewelry, and decorative objects.
Geological facts
The characteristic green sparkle of aventurine is caused by tiny mica or fuchsite mineral flakes trapped inside the quartz during its formation, an optical effect known as aventurescence.
Field identification & locations
Easily identified by its translucent green color and subtle metallic glitter. Commonly sourced from India, Brazil, Russia, and the United States.
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