mineral
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
Hardness of 7 on the Mohs scale, color ranges from pale green to deep green, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, color ranges from pale green to deep green, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed in metamorphic environments, specifically within quartzite or schist, as quartz solutions infiltrate existing rock and incorporate green chromium-rich micas (fuchsite) during crystallization over millions of years.
Uses & applications
Commonly used for tumbled stones, cabochons, carvings, ornamental objects, and in crystal healing and jewelry making.
Geological facts
The shimmering or glittering effect in aventurine is known as aventurescence, caused by the reflective metallic inclusions of mica or other minerals trapped inside the quartz matrix.
Field identification & locations
Identified by its distinctive translucent green color and sparkling metallic flecks under light. Found globally with major deposits in India, Brazil, Russia, and Austria. Easily identified by its hardness of 7 and lack of cleavage.
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