mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Hardness: 7 Mohs; Color: Speckled or shimmering green; Luster: Vitreous to waxy with aventurescence; Crystal structure: Trigonal; Specific gravity: 2.64-2.69
- Hardness
- 7 Mohs
- Color
- Speckled or shimmering green
- Luster
- Vitreous to waxy with aventurescence
Identified More mineral →
Explore Green Aventurine in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 7 Mohs; Color: Speckled or shimmering green; Luster: Vitreous to waxy with aventurescence; Crystal structure: Trigonal; Specific gravity: 2.64-2.69
Formation & geological history
Formed in metamorphic rocks and magmatic environments where mica and quartz recrystallize together. Its green color is typically caused by platy inclusions of chromium-rich mica called fuchsite.
Uses & applications
Commonly used for ornamental carvings, polished stones, cabochon jewelry, and metaphysical collections.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to accidental aventurine glass discovery in the 18th century.
Field identification & locations
Identify by its characteristic 'aventurescence' (a metallic glitter) caused by mica inclusions. Frequently found in India, Brazil, and Russia.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock