mineral
Tourmaline in Quartz
Schorl in SiO2
AI-generated identification · may be incorrectHardness 7-7.5 on Mohs scale, high contrast black prismatic crystals embedded in white quartz, vitreous luster.
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Physical properties
Hardness 7-7.5 on Mohs scale, high contrast black prismatic crystals embedded in white quartz, vitreous luster.
Formation & geological history
Formed through hydrothermal pegmatite processes deep within the Earth's crust.
Uses & applications
Used primarily in mineral specimen collecting, wire-wrapped jewelry, and metaphysical practices.
Geological facts
Black tourmaline (schorl) is a natural piezoelectric and pyroelectric material.
Field identification & locations
Easily identified by stark black-and-white contrast; found globally in pegmatites, notably Brazil and the USA.
