mineral
Quartz (Rutilated)
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
AI-generated identification · may be incorrectHardness: 7 (Mohs scale), Color: Clear/translucent with gold or reddish needle-like inclusions, Luster: Vitreous, Crystal structure: Trigonal/Hexagonal, Cleavage: None (conchoidal fracture), Specific Gravity: 2.65
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Physical properties
Hardness: 7 (Mohs scale), Color: Clear/translucent with gold or reddish needle-like inclusions, Luster: Vitreous, Crystal structure: Trigonal/Hexagonal, Cleavage: None (conchoidal fracture), Specific Gravity: 2.65
Formation & geological history
Formed through hydrothermal processes in pegmatites or metamorphic veins where titanium-rich minerals crystallize into needles within the cooling quartz crystal.
Uses & applications
Used primarily in jewelry as a gemstone, decorative carvings, and by crystal collectors for aesthetic and metaphysical purposes.
Geological facts
The needle-like inclusions are a mineral called rutile, often known as 'Venus hair' or 'Angel hair' quartz. It is unique because every specimen has a completely different internal pattern.
Field identification & locations
Identifiable by its glassy appearance and the presence of internal needle-shapped inclusions. Commonly found in Brazil, Madagascar, and the United States. Collectors look for high clarity and dense needle patterns.
