mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Hardness: 6.5-7 on the Mohs scale. Color: Pale to deep green with a shimmering effect known as aventurescence. Luster: Vitreous to greasy. Crystal Structure: Hexagonal (trigonal). Cleavage: None. Specific Gravity: 2.64-2.69.

Hardness: 6
Luster: Vitreous to greasy

Identified March 5, 2026More mineral →

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Physical properties

Formation & geological history

Formed in magmatic rocks and metamorphic environments such as phyllites and schists. The green color is caused by platy inclusions of chromium-rich mica (fuchsite). Found in deposits ranging from millions to billions of years old.

Uses & applications

Predominantly used for lapidary work including figurines, cabochons, beads, and jewelry. It is also a very popular stone for mineral collecting and ornamental carvings.

Geological facts

The name 'Aventurine' is derived from the Italian 'a ventura,' meaning 'by chance.' This refers to the accidental discovery of aventurine glass (goldstone) in the 18th century, which looks similar to this natural stone. It is often called 'The Stone of Opportunity.'

Field identification & locations

Identify in the field by its distinct 'shimmer' caused by light reflecting off internal mica flakes. Most commonly sourced from India, Brazil, and Russia. For collectors, look for uniform color and strong aventurescence.

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