mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Hardness: 6.5 - 7.0 on Mohs scale; Color: Translucent green with shimmering internal reflections; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.63 - 2.69

Hardness: 6
Color: Translucent green with shimmering internal reflections
Luster: Vitreous to waxy

Identified March 15, 2026More mineral →

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Physical properties

Formation & geological history

Formed in metamorphic rocks (schist) and certain igneous environments where quartz recrystallizes in the presence of chromium-rich mica (Fuchsite). The shimmering effect is known as 'aventurescence'. Processes occur over millions of years under high pressure.

Uses & applications

Commonly used for lapidary work, decorative carvings, jewelry (beads, cabochons), tumbled stones for collectors, and belief-based metaphysical uses.

Geological facts

The name comes from the Italian 'a ventura' meaning 'by chance', referring to the chance discovery of aventurine glass (Goldstone) in the 18th century, which looks similar to this natural stone.

Field identification & locations

Identify by its characteristic green color and 'sparkle' (aventurescence) caused by mica inclusions. Commonly found in India (major source), Brazil, Russia, and Austria. Collectors should look for even color distribution and strong internal shimmer.

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