
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Hardness: 7 on Mohs scale; Color: Green with aventurescence (shimmer); Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None; Specific Gravity: 2.64–2.69.
- Hardness
- 7 on Mohs scale
- Color
- Green with aventurescence (shimmer)
- Luster
- Vitreous
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Physical properties
Hardness: 7 on Mohs scale; Color: Green with aventurescence (shimmer); Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None; Specific Gravity: 2.64–2.69.
Formation & geological history
Formed in metamorphic rocks and magmatic environments. The signature green color and shimmer are caused by platy inclusions of green fuchsite mica within the quartz matrix. Found in Precambrian and later geological formations.
Uses & applications
Used extensively in jewelry (beads, cabochons), ornamental carvings, figurines, and as a popular stone for crystal healing and collecting.
Geological facts
The name 'aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to the accidental discovery of aventurine glass. The shimmer effect is specifically called aventurescence.
Field identification & locations
Identify by its characteristic green color and the 'glittery' speckles seen under light. Commonly found in India, Brazil, Russia, and Austria. Unlike dyed quartz, its color is usually grainy rather than concentrated in cracks.
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