mineral
Tourmalinated Quartz
Silicon dioxide with sodium aluminum borosilicate (SiO2 + Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with black needle-like inclusions, vitreous luster, and trigonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with black needle-like inclusions, vitreous luster, and trigonal crystal system.
Formation & geological history
Formed in hydrothermal veins and pegmatites during late-stage crystallization of magma, often millions of years ago.
Uses & applications
Used primarily in lapidary arts, metaphysical healing, and carved gemstone jewelry.
Geological facts
The contrasting black tourmaline needles trapped inside clear quartz are often called 'Venus hair' stones by collectors.
Field identification & locations
Easily identified by distinct black prismatic inclusions embedded within transparent to milky white quartz matrix; found globally in Brazil, Madagascar, and the USA.
