mineral
Yellow Aventurine (Tumbled)
Silicon Dioxide (SiO2) with inclusions
Hardness: 7 Mohs; Color: Pale to deep yellow-orange; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Specific gravity: 2.64-2.69. It contains inclusions of mica or iron oxides that create an 'aventurescent' shimmer.
- Hardness
- 7 Mohs
- Color
- Pale to deep yellow-orange
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 Mohs; Color: Pale to deep yellow-orange; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Specific gravity: 2.64-2.69. It contains inclusions of mica or iron oxides that create an 'aventurescent' shimmer.
Formation & geological history
Metamorphic or sedimentary formation where quartz crystallizes with inclusions of other minerals. Yellow aventurine often gets its color from iron oxide or mica inclusions and is commonly found in India, Brazil, and Russia.
Uses & applications
Used primarily for lapidary work, jewelry (beads, cabochons), and as a popular stone for metaphysical collections, meditation, and decorative carvings.
Geological facts
While green is the most common color for Aventurine, the yellow variety is prized for its warm hue. The name 'aventurine' comes from the Italian word 'a ventura', meaning 'by chance', originally referring to accidental discoveries in glass making that looked like this stone.
Field identification & locations
Identify by its characteristic quartz-like fracture and subtle shimmering effect. In the field, look for quartzite formations with distinct iron-staining or mica flakes. It can be distinguished from yellow jasper by its greater translucency.
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