Green Aventurine

Physical Properties

Hardness: 7 on Mohs scale; Color: Pale to medium green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.64-2.69

Formation & Geological History

Formed in high-pressure metamorphic environments through the recrystallization of quartz containing micas or other minerals, often in plutonic or volcanic rocks.

Uses & Applications

Primarily used for lapidary work, jewelry (beads, cabochons), ornamental carvings, and 'healing crystal' collections.

Geological Facts

The characteristic 'aventurescence' effect is caused by tiny inclusions of green fuchsite mica. The name comes from the Italian 'a ventura,' meaning 'by chance.'

Field Identification & Locations

Identify by its characteristic shimmer (aventurescence) and grainy texture compared to jade. Commonly found in India, Brazil, and Russia.

Identified on: 4/20/2026

Mode: Standard