mineral
Black Tourmaline and Rutilated Quartz Bracelet
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4) and Quartz with Rutile (SiO2 + TiO2)
AI-generated identification · may be incorrectHardness 7 on the Mohs scale, opaque black luster for tourmaline and transparent with golden needles for rutilated quartz, trigonal crystal system.
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Physical properties
Hardness 7 on the Mohs scale, opaque black luster for tourmaline and transparent with golden needles for rutilated quartz, trigonal crystal system.
Formation & geological history
Formed in pegmatites, hydrothermal veins, and metamorphic rocks globally over millions of years.
Uses & applications
Widely used in gemstone jewelry, ornamental wear, and metaphysical collections.
Geological facts
Black tourmaline is known for its natural piezoelectric properties, while rutilated quartz contains shimmering titanium dioxide needles.
Field identification & locations
Easily identified by its contrasting black beads and golden-threaded translucent quartz beads, commonly sourced from Brazil and India.
