mineral
Rutilated Quartz
Silicon Dioxide (SiO2) with inclusions of Rutile (TiO2)
Hardness: 7 (Mohs scale), Color: Clear to pale yellow quartz with black or gold needle-like inclusions, Luster: Vitreous, Crystal structure: Trigonal/Hexagonal, Specific gravity: 2.65
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Physical properties
Hardness: 7 (Mohs scale), Color: Clear to pale yellow quartz with black or gold needle-like inclusions, Luster: Vitreous, Crystal structure: Trigonal/Hexagonal, Specific gravity: 2.65
Formation & geological history
Formed in hydrothermal veins and pegmatites where titanium dioxide crystallizes into needle-like rutiles within growing quartz crystals.
Uses & applications
Popular in jewelry as gemstones, meditation aids, and collector specimens due to unique aesthetic patterns.
Geological facts
Commonly known as 'Venus' hair stone', the inclusions are often black (schorl/tourmaline) or golden (rutile), creating unique designs that vary in every piece.
Field identification & locations
Identify by transparent quartz body containing fine, hair-like mineral inclusions. Found globally with significant deposits in Brazil, Madagascar, and the USA.
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