Green Aventurine

Physical Properties

Hardness: 6.5-7 (Mohs scale); Color: Green; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Cleavage: None; Specific gravity: 2.64-2.69; Notable for its 'aventurescence' (shimmering effect).

Formation & Geological History

Formed in metamorphic environments where quartz and mica (specifically Fuchsite) recrystallize under high pressure and temperature. It is often found in prehistoric metamorphic belts.

Uses & Applications

Commonly used in jewelry, decorative carvings, landscaping stones, and as a popular specimen for metaphysical collections.

Geological Facts

The name 'Aventurine' comes from the Italian word 'a ventura', meaning 'by chance', originally referring to Venetian glass accidentally created by a worker dropping copper filings into molten glass.

Field Identification & Locations

Identify in the field by its green color and shimmering quality under light. Found primarily in India, Brazil, and parts of Russia. Collectors should look for even color distribution and strong mica shimmer.

Identified on: 4/29/2026

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