Green Aventurine

Physical Properties

Hardness: 6.5-7 (Mohs); Color: Pale to deep green; Luster: Vitreous to waxy; Crystal Structure: Hexagonal (trigonal); Cleavage: None; Specific Gravity: 2.64-2.69; Note: Exhibits aventurescence due to mineral inclusions.

Formation & Geological History

Formed as a quartz-rich metamorphic rock (quartzite) containing inclusions of chrome-bearing mica called fushite. Most deposits date back to the Precambrian era.

Uses & Applications

Commonly used for ornamental carvings, beads for jewelry, landscape stones, and as a popular stone for gemstone collecting and metaphysical practices.

Geological Facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to accidental glass discovery in the 18th century that looked similar to this natural stone.

Field Identification & Locations

Identify in the field by its green color and 'sparkly' or metallic-glitter appearance (aventurescence) when turned under light. Primarily found in India, Brazil, and Russia.

Identified on: 5/2/2026

Mode: Standard