mineral

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Hardness: 7 Mohs; Color: Pale green to medium green; Luster: Vitreous to waxy; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.64-2.69. It displays 'aventurescence' due to mica inclusions.

Hardness: 7 Mohs
Color: Pale green to medium green
Luster: Vitreous to waxy

Identified July 12, 2026More mineral →

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Physical properties

Formation & geological history

Metamorphic rock formation. It is a variety of translucent quartz or quartzite that contains small platy mineral inclusions (such as fuchsite mica) that give it a shimmering or glistening effect.

Uses & applications

Commonly used for cabochons, beads, ornamental carvings, aquarium decor, and as a popular stone for lapidary hobbyists and jewelry.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to accidental discoveries of similar looking glass in the 18th century. It is often called the 'Stone of Opportunity'.

Field identification & locations

Identify by its green color and shimmering quality (aventurescence). Found in Brazil, India, Austria, and Russia. When found in the field, it often looks like dull green quartzite until wetted or polished.

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