metamorphic
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
Hardness: 6.5-7 on Mohs scale; Color: Pale to deep green; Luster: Vitreous to waxy with aventurescence (shimmer); Crystal structure: Trigonal (granular texture); Cleavage: None (conchoidal fracture); Specific gravity: 2.64-2.69.
- Hardness
- 6
- Color
- Pale to deep green
- Luster
- Vitreous to waxy with aventurescence (shimmer)
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Physical properties
Hardness: 6.5-7 on Mohs scale; Color: Pale to deep green; Luster: Vitreous to waxy with aventurescence (shimmer); Crystal structure: Trigonal (granular texture); Cleavage: None (conchoidal fracture); Specific gravity: 2.64-2.69.
Formation & geological history
Formed primarily in metamorphic environments through the recrystallization of quartz and the inclusion of platy mica minerals like Fuchsite, which provide the green color and shimmer.
Uses & applications
Used extensively in lapidary arts for beads, figurines, jewelry, and as decorative building stone. Also popular in the metaphysical community for crystal healing and as a lucky stone for collectors.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura' meaning 'by chance', referring to the chance discovery of aventurine glass or goldstone in the 18th century, which this mineral resembles.
Field identification & locations
Identify by its characteristic 'aventurescence'—a glittering effect caused by tiny mica inclusions. Commonly found in India, Brazil, Russia, and Austria. Distinguishable from jade by its lower toughness and shimmering texture.
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