metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions
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.
- Hardness
- 6
- Color
- Pale to deep green
- Luster
- Vitreous to waxy
Identified More metamorphic →
Identify your own rocks.
Get a report just like this from any photo, free.
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.
More like this
