mineral
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
Hardness: 7 on the Mohs scale; Color: Light to dark green; Luster: Vitreous to greasy, with a shimmering or glistening effect (aventurescence) due to mineral inclusions; Crystal system: Trigonal; Specific gravity: 2.64-2.69
- Hardness
- 7 on the Mohs scale
- Color
- Light to dark green
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Physical properties
Hardness: 7 on the Mohs scale; Color: Light to dark green; Luster: Vitreous to greasy, with a shimmering or glistening effect (aventurescence) due to mineral inclusions; Crystal system: Trigonal; Specific gravity: 2.64-2.69
Formation & geological history
Formed in metamorphic environments, particularly through the hydrothermal alteration of quartz veins and pegmatites, often incorporating tiny scales of green mica (fuchsite).
Uses & applications
Used primarily for making tumbled stones, carvings, jewelry, and decorative objects, as well as valued by collectors and practitioners of crystal healing.
Geological facts
The shimmering effect, known as aventurescence, is caused by tiny reflective flakes of other minerals trapped inside the quartz matrix during formation.
Field identification & locations
Easily identified by its distinctive green color combined with the sparkling metallic sheen caused by inclusions. Commonly found in India, Brazil, Russia, and the United States.
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