mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Hardness: 7 (Mohs scale), Color: Forest green to pale green, Luster: Vitreous to waxy, Crystal Structure: Trigonal, Cleavage: None, Specific Gravity: 2.64-2.69

Identified June 13, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale), Color: Forest green to pale green, Luster: Vitreous to waxy, Crystal Structure: Trigonal, Cleavage: None, Specific Gravity: 2.64-2.69

Formation & geological history

Formed in igneous or metamorphic rocks where silica-rich fluids cool or crystallize; the green color is typically caused by chrome-rich mica (Fuchsite) inclusions. Commonly found in Precambrian or Paleozoic metamorphic terrains.

Uses & applications

Extensively used for ornamental carvings, tumble stones, beads for jewelry, and as a popular specimen for crystal healing collectors.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' originally referring to the 18th-century discovery of Goldstone glass which shares a similar glittering effect.

Field identification & locations

Identify by its characteristic 'aventurescence' (a shimmering or glistening effect caused by platy mineral inclusions). Since the location is near São Paulo, Brazil, this is highly plausible as Brazil is one of the world's largest producers of high-quality green aventurine.

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