metamorphic
Yellow Aventurine
Quartzite with Muscovite/Goethite inclusions (SiO2)
Hardness: 7 Mohs; Color: Honey yellow to golden orange; Luster: Vitreous to waxy; Texture: Granular; Aventurescence: Subtle shimmering effect.
- Hardness
- 7 Mohs
- Color
- Honey yellow to golden orange
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 Mohs; Color: Honey yellow to golden orange; Luster: Vitreous to waxy; Texture: Granular; Aventurescence: Subtle shimmering effect.
Formation & geological history
Formed through the regional metamorphism of quartz-rich sandstone. The yellow coloration is typically derived from inclusions of pyrite, goethite, or yellow mica (muscovite).
Uses & applications
Used primarily in lapidary work for cabochons, beads, decorative carvings, and as a pocket stone for collectors.
Geological facts
While green aventurine is the most common variety, yellow aventurine gets its warm hue from minute mineral inclusions trapped during the recrystallization of quartz.
Field identification & locations
Identify by its characteristic quartz hardness (it will scratch glass) and its subtle interior shimmer. Commonly sourced from India and Brazil.
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