mineral

Green Aventurine

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

Hardness: 7 Mohs scale; Color: Green (due to Chromium-rich muscovite); Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Presence of platy inclusions creates a shimmering effect known as aventurescence.

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

Identified July 4, 2026More mineral →

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Physical properties

Formation & geological history

Metamorphic rock formation where quartz undergoes heat and pressure, incorporating tiny flakes of mica (fuchsite). Most often found in metamorphic terranes and orogenic belts.

Uses & applications

Commonly used for ornamental carvings, jewelry making (cabochons and beads), and as a popular stone for crystal collectors due to its shimmering aesthetic.

Geological facts

The name 'Aventurine' is derived from the Italian 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of aventurine glass in the 18th century before the natural stone was associated with the term.

Field identification & locations

Identify by its characteristic green 'sparkle' or shimmer when rotated under light. It is commonly found in India, Brazil, and Russia. Collectors value deep, uniform color and high aventurescence.

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