Rock Identifier
Green Aventurine (Quartz (Silicon Dioxide with Fuchsite inclusions - SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral
mineral

Green Aventurine

Quartz (Silicon Dioxide with Fuchsite inclusions - SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Hardness: 7 on Mohs scale. Color: Pale green to sea green with a shimmering effect (aventurescence). Luster: Vitreous to waxy. Crystal Structure: Trigonal/Hexagonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.64-2.69.

Hardness
7 on Mohs scale
Luster
Vitreous to waxy
Identified More mineral
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Physical properties

Hardness: 7 on Mohs scale. Color: Pale green to sea green with a shimmering effect (aventurescence). Luster: Vitreous to waxy. Crystal Structure: Trigonal/Hexagonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.64-2.69.

Formation & geological history

Formed primarily in regional metamorphic environments where quartz-rich sediments undergo heat and pressure alongside chromium-bearing minerals, precipitating fine flakes of green fuchsite mica within the quartz matrix.

Uses & applications

Widely used in gemstone jewelry, ornamental carvings, lapidary arts, and popular among crystal collectors for metaphysical practices as a stone of prosperity.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', referring to the accidental discovery of aventurine glass (goldstone) in the 18th century, which resembled the natural mineral.

Field identification & locations

Identified by its pale green color, quartz hardness (scratches glass), and fine metallic glint when held under light. Commonly mined in India, Brazil, Russia, and South Africa.