mineral

Green Aventurine

Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions

Hardness: 7 on the Mohs scale. Color: Green, ranging from pale green to deep forest green. Luster: Vitreous to greasy, often featuring a shimmering or glistening effect called aventurescence due to tiny flat inclusions. Crystal Structure: Trigonal. Cleavage: None. Specific Gravity: 2.65.

Hardness: 7 on the Mohs scale
Color: Green, ranging from pale green to deep forest green

Identified July 31, 2026More mineral →

Explore Green Aventurine in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Formed in metamorphic environments, particularly quartz-rich rocks like quartzites and schists, where chromium-rich micas (like fuchsite) crystallize alongside quartz. It also forms in hydrothermal veins and pegmatites.

Uses & applications

Used primarily in jewelry, ornamental carvings, tumbling, and crystal healing practices.

Geological facts

The shimmering effect in aventurine, known as aventurescence, comes from reflective mineral platelets trapped inside the quartz during its formation. The name is derived from the Italian word 'avventura', meaning 'by chance'.

Field identification & locations

Can be identified in the field by its distinct green color combined with a sparkling, metallic glitter beneath the surface. Commonly found in India, Brazil, Russia, Austria, and the United States.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Soil with Mineral Detritus and Quartz Fragments

Regolith / Silicate Mineral Aggregate

sedimentary

Limonite / Goethite (Iron Ore Mineral nodule)

FeO(OH)·nH2O / FeO(OH)

mineral

Schist

Metamorphic

Septarian Pebble

Septarian nodule / Concretion

sedimentary

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

mineral