mineral

Green Aventurine

Silicon Dioxide (SiO2) with inclusions (typically Fuchsite)

Hardness: 7 on Mohs scale; Color: Forest green to translucent green; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.64-2.69

Hardness: 7 on Mohs scale
Color: Forest green to translucent green
Luster: Vitreous to waxy

Identified March 28, 2026More mineral →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 7 on Mohs scale; Color: Forest green to translucent green; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.64-2.69

Formation & geological history

Formed in magmatic or hydrothermal environments where silica-rich fluids permeate rocks, often undergoing metamorphic pressure. Most deposits are found in Precambrian cratons (over 500 million years old).

Uses & applications

Commonly used in jewelry (beads, cabochons), metaphysical products, ornamental carvings, and aquarium decor. Occasionally used as a building stone for countertops or mosaics.

Geological facts

Known as the 'Stone of Opportunity,' its characteristic shimmer is called 'aventurescence,' caused by tiny mica inclusions that reflect light like a disco ball.

Field identification & locations

Identify by its green color and subtle metallic shimmer. Commonly found in India, Brazil, and Russia. When found raw, it often looks like dull green quartz; polishing reveals the internal depth.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral