mineral
Tourmalinated Quartz
Quartz with Tourmaline inclusions (SiO2 + Na(Fe,Mg,Al)3Al6(BO3)3Si6O18(OH)4)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, transparent to white quartz matrix with contrasting black prismatic tourmaline needles, vitreous luster.
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Physical properties
Hardness of 7 on Mohs scale, transparent to white quartz matrix with contrasting black prismatic tourmaline needles, vitreous luster.
Formation & geological history
Formed in pegmatites and hydrothermal veins where quartz crystallization coexists with boron-rich tourmaline fluids over millions of years.
Uses & applications
Popularly used in gemstone jewelry, metaphysical healing collections, and decorative carvings.
Geological facts
The contrasting needle inclusions are naturally formed as the quartz crystal grows around pre-existing tourmaline crystals.
Field identification & locations
Easily identified by distinct black needle-like crystals embedded within a clear or milky quartz background; found worldwide including Brazil and the USA.
