mineral
Quartz with Tourmaline
Silicon dioxide with schorl (SiO2 + NaFe3Al6(Si6O18)(BO3)3(OH)4)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white or transparent color with black dendritic inclusions, vitreous luster, trigonal crystal system, conchoidal fracture, and a specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, white or transparent color with black dendritic inclusions, vitreous luster, trigonal crystal system, conchoidal fracture, and a specific gravity of 2.65.
Formation & geological history
Formed through hydrothermal processes where silica-rich fluids and boron-bearing minerals crystallize within pegmatites or metamorphic veins over millions of years.
Uses & applications
Used widely in decorative carvings, cabochons, metaphysical crystal healing collections, and distinctive jewelry.
Geological facts
The contrasting black tourmaline needles trapped inside transparent quartz are often referred to as 'venus hair' or tourmalinated quartz.
Field identification & locations
Easily identified by distinct black prismatic crystal inclusions trapped inside a hard, glassy white host stone; commonly sourced from Brazil, Madagascar, and the USA.
