mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Hardness: 7 (Mohs), Color: Translucent to opaque green, Luster: Vitreous to waxy, Crystal Structure: Trigonal/Microcrystalline, Specific Gravity: 2.63 - 2.65
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: Translucent to opaque green, Luster: Vitreous to waxy, Crystal Structure: Trigonal/Microcrystalline, Specific Gravity: 2.63 - 2.65
Formation & geological history
Formed in metamorphic rocks and hydrothermal veins. The distinctive green color and spangled effect (aventurescence) are caused by platy inclusions of green chrome-mica called fuchsite.
Uses & applications
Commonly used in jewelry (cabochons, beads), decorative carvings, tumbled stones, and as a popular 'healing crystal' in metaphysical practices.
Geological facts
The name 'aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' originally referring to a type of Italian glass discovered accidentally that looks similar to this mineral.
Field identification & locations
Identified by its grainy quartz texture and shimmering green flecks. Found commonly in India, Brazil, Russia, and Austria. Distinguishable from jade by its lower toughness and visible mica flakes.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Schist
Schist
Metamorphic
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic