mineral

Green Aventurine

Silicon Dioxide (SiO2) with Chromium-bearing Fuchsite

Hardness: 6.5-7 (Mohs); Color: Light to dark green; Luster: Vitreous to waxy; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.64-2.69. Features characteristic 'aventurescence' (shimmering effect).

Hardness: 6
Color: Light to dark green
Luster: Vitreous to waxy

Identified June 28, 2026More mineral →

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Physical properties

Formation & geological history

Formed as a sedimentary rock (sandstone) through regional metamorphism that recrystalizes quartz grains into a tough, interlocking network, with Fuchsite mica inclusions providing the green color.

Uses & applications

Primarily used for ornamental carvings, jewelry (cabochons and beads), landscaping, and as a popular stone for metaphysical collecting.

Geological facts

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

Field identification & locations

Identify by its grainy texture, green color, and subtle metallic shimmer. Commonly found in India, Brazil, Russia, and Austria. Collectors should look for even color distribution and a strong shimmering effect.

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