mineral

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Pale to dark green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific Gravity: 2.64-2.69. Known for aventurescence (a glistening effect).

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

Identified May 24, 2026More mineral →

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Physical properties

Formation & geological history

Forms in metamorphic rocks such as phyllites and schists where mica minerals (specifically fuchsite) align during pressure and heat, giving the quartz its distinctive green shimmer.

Uses & applications

Primarily used for decorative purposes, ornamental carvings, tumbled stones for collectors, and in jewelry such as beads, cabochons, and pendants.

Geological facts

The name 'Aventurine' is derived from the Italian 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of aventurine glass in the 18th century. It is often called the 'Stone of Opportunity' in metaphysical circles.

Field identification & locations

Identify by its characteristic green color and shimmering 'aventurescence' caused by mica inclusions. Commonly found in India (the largest producer), Brazil, and Russia. Look for a grainy texture when unpolished.