gemstone

Green Aventurine

Aventurine Quartz (SiO2 with fuchsite inclusions)

AI-generated identification · may be incorrect

Hardness: 6.5–7 on the Mohs scale; Color: translucent to opaque light-to-medium green; Luster: vitreous to shimmering (aventurescent); Crystal system: Trigonal (microcrystalline); Specific gravity: ~2.64–2.69; Cleavage: None (conchoidal to uneven fracture).

Hardness: 6
Color: translucent to opaque light-to-medium green
Luster: vitreous to shimmering (aventurescent)

Identified October 3, 2026More gemstone →

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Physical properties

Formation & geological history

Formed predominantly in metamorphic environments as quartzite recrystallizes under moderate heat and pressure, trapping microscopic platelets of chromium-rich mica (fuchsite) which impart both the green hue and glittering shimmer.

Uses & applications

Commonly carved into ornamental sculptures, cabochons, polished eggs/spheres, beads, tumbled stones, and widely used in metaphysical crystal healing practices.

Geological facts

Its name derives from the Italian 'a ventura' (meaning 'by chance'), originally referring to an Italian glassmaker's accidental discovery of aventurine glass (goldstone) in the 18th century, which natural aventurine quartz strongly resembles.

Field identification & locations

Identified by its signature 'aventurescence'—a subtle internal metallic or sparkly glimmer caused by fuchsite inclusions visible under direct light. Major commercial sources include India, Brazil, Russia, and Tanzania.