mineral

Green Aventurine

SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)

Hardness: 6.5-7 (Mohs scale), Color: Pale to translucent green, Luster: Vitreous to waxy, Crystal Structure: Trigonal/Hexagonal (microcrystalline), Cleavage: None (conchoidal fracture), Specific Gravity: 2.64-2.69

Hardness: 6

Identified July 9, 2026More mineral →

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Physical properties

Formation & geological history

Formed in metamorphic environments where quartz-rich rocks undergo recrystallization; the green color comes from chromium-rich mica (fuchsite) trapped within the quartz matrix. Most deposits are millions of years old.

Uses & applications

Extensively used in lapidary work for carvings, figurines, cabochons for jewelry, and as a popular pocket stone for crystal collectors. Highly valued in decorative interior design.

Geological facts

Known as the 'Stone of Opportunity,' it is a variety of quartz characterized by its translucency and the presence of platy mineral inclusions that give a shimmering or glistening effect termed 'aventurescence'.

Field identification & locations

Identified by its distinctive shimmering green surface and conchoidal fracture. Commonly found in India, Brazil, and Russia. Collectors should look for the subtle 'sparkle' inside the stone that distinguishes it from green glass.

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sedimentary

Sandstone with Mineral Veining or Crust

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sedimentary

Schist

Metamorphic

Epidote

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metamorphic

Gypsum (variety Selenite or Alabaster)

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Mineral

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Mineral/Rock