mineral

Green Aventurine

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

AI-generated identification · may be incorrect

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. Characterized by aventurescence (a shimmering effect).

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

Identified July 18, 2026More mineral →

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Physical properties

Formation & geological history

Forms in metamorphic rocks such as phyllites and schists, or in hydrothermal veins. The green color is derived from inclusions of chrome-rich fuchsite mica. Primarily found in India, Brazil, and Russia.

Uses & applications

Widely used for ornamental carvings, beads, cabochons for jewelry, and as a popular pocket stone for crystal healing collectors.

Geological facts

The name 'Aventurine' comes from the Italian word 'a ventura', meaning 'by chance', originally referring to accidental 18th-century Venetian glass production that looked similar to this mineral.

Field identification & locations

Look for a grainy texture within the stone and a characteristic shimmer when turned under light. It is often confused with jade, but the mica inclusions are a key differentiator for aventurine.