mineral
Aventurine
Quartz with Fuchsite inclusions (SiO2)
AI-generated identification · may be incorrectHardness 6.5–7 on Mohs scale, translucent pale green color with glistening aventurescence, vitreous to dull luster, trigonal crystal system, and specific gravity around 2.64–2.69.
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Physical properties
Hardness 6.5–7 on Mohs scale, translucent pale green color with glistening aventurescence, vitreous to dull luster, trigonal crystal system, and specific gravity around 2.64–2.69.
Formation & geological history
Formed in metamorphic quartzites or pegmatites where chromium-rich muscovite (fuchsite) platelets crystallize within massive quartz.
Uses & applications
Commonly carved into cabochons, beads, ornamental carvings, and used widely in decorative lapidary work and jewelry.
Geological facts
Its signature shimmering effect is called aventurescence, named after 'a ventura' (Italian for 'by chance'), originally referring to Italian aventurine glass invented in the 1700s.
Field identification & locations
Identified by its characteristic green color combined with sparkling mica platelets under light; major sources include India, Brazil, and Russia.
