mineral

Green Aventurine

Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

AI-generated identification · may be incorrect

Hardness: 7 Mohs; Color: Pale to dark green with a shimmering effect; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific gravity: 2.64-2.69

Hardness: 7 Mohs
Color: Pale to dark green with a shimmering effect
Luster: Vitreous to waxy

Identified July 13, 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

Hardness: 7 Mohs; Color: Pale to dark green with a shimmering effect; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific gravity: 2.64-2.69

Formation & geological history

Formed in metamorphic rocks (phyllites and schists) and hydrothermal veins where silica-rich fluids cool. The green color comes from tiny mica platelets called Fuchsite that become trapped in the quartz as it crystallizes.

Uses & applications

Primarily used for decorative purposes, jewelry (beads, cabochons), ornamental carvings, and widely used in the metaphysical and gemstone collecting communities.

Geological facts

The shimmering effect seen in Aventurine is called 'aventurescence,' caused by the reflection of light from tiny platy mineral inclusions. While green is the most common color, it can also be found in blue, orange, and red/brown variants.

Field identification & locations

Identify by its characteristic shimmer (aventurescence) and grainy quartz texture. It is commonly found in India, Brazil, and Russia. Unlike jade, it will often have a visible 'sparkly' or granular interior when viewed under light.