mineral

Green Aventurine in Host Rock

Quartz (SiO2) with Fuchsite inclusions

Hardness: 7 (Mohs scale); Color: Green (due to Chromium-rich mica); Luster: Vitreous to waxy; Crystal structure: Hexagonal/Trigonal; Aventurescence: A shimmering effect caused by platy mineral inclusions.

Hardness: 7 (Mohs scale)
Color: Green (due to Chromium-rich mica)
Luster: Vitreous to waxy

Identified June 27, 2026More mineral →

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Physical properties

Formation & geological history

Formed in magmatic or hydrothermal environments where silica-rich fluids crystallize. The green color comes from inclusions of Fuchsite mica that grew during the metamorphic or cooling process.

Uses & applications

Commonly used for ornamental carvings, beads, lapidary cabochons, and as a popular stone in the metaphysical/crystal collecting community.

Geological facts

Aventurine is known as the 'Stone of Opportunity.' The name comes from the Italian 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of aventurine glass in the 18th century.

Field identification & locations

Identified by its distinctive sparkly 'aventurescence' and green spots within a quartz matrix. Look for granular texture and a glassy luster when wet. Common in India, Brazil, and Russia.

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Mineral/Rock

Banded Gneiss (River Rock/Pebble)

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Metamorphic Rock

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mineral