Rock Identifier
Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — mineral
mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Hardness: 6.5-7 on Mohs scale. Color: Pale to dark green. Luster: Vitreous to waxy. Crystal Structure: Trigonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.64-2.69. Characterized by 'aventurescence' (metallic glisten).

Hardness
6
Color
Pale to dark green
Luster
Vitreous to waxy
Identified More mineral

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Physical properties

Hardness: 6.5-7 on Mohs scale. Color: Pale to dark green. Luster: Vitreous to waxy. Crystal Structure: Trigonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.64-2.69. Characterized by 'aventurescence' (metallic glisten).

Formation & geological history

Formed in magmatic and metamorphic environments where silica-rich fluids stabilize. Its green color and shimmer are caused by platy inclusions of Fuchsite (chromium-rich mica) trapped within the quartz during formation.

Uses & applications

Commonly used in the jewelry industry for beads, cabochons, and figurines. Also used for ornamental carvings, aquarium decor, and widely collected as a metaphysical healing stone.

Geological facts

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

Field identification & locations

Identify in the field by its green color combined with a signature internal crystalline shimmer. Common locations include India (the primary producer), Brazil, Russia, and Tanzania. Collectors should look for even distribution of mica flakes.