mineral
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
Hardness: 6.5-7 Mohs; Color: Pale to medium green; Luster: Vitreous to greasy; Crystal Structure: Trigonal; Key feature: Aventurescence (shimmy/glitter effect caused by mica inclusions).
- Hardness
- 6
- Color
- Pale to medium green
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 6.5-7 Mohs; Color: Pale to medium green; Luster: Vitreous to greasy; Crystal Structure: Trigonal; Key feature: Aventurescence (shimmy/glitter effect caused by mica inclusions).
Formation & geological history
Formed in metamorphic environments or igneous pegmatites through the recrystallization of quartz containing platy mineral inclusions like fuchsite (green mica).
Uses & applications
Used extensively for carvings, cabochons for jewelry, decorative beads, and as an ornamental stone in landscaping or home decor. Popular in the metaphysical community.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of aventurine glass in the 18th century before the natural mineral was named.
Field identification & locations
Identify by its characteristic green color and internal 'glitter' or sparkles. Commonly found in India (the primary producer), Brazil, and Russia. Collectors look for even color and high mica content.
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