mineral
Quartz with Tourmaline
Silicon Dioxide with Complex Boron Silicate (SiO2 + Na(Fe3Al6)(Al5Si6O18)(BO3)3(OH)4)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale with a vitreous luster and conchoidal fracture. Displays white to transparent quartz intergrown with dark, prismatic tourmaline crystals.
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Physical properties
Hardness of 7 on the Mohs scale with a vitreous luster and conchoidal fracture. Displays white to transparent quartz intergrown with dark, prismatic tourmaline crystals.
Formation & geological history
Formed in hydrothermal veins and pegmatites through the cooling of mineral-rich fluids deep within the Earth's crust.
Uses & applications
Used in crystal healing, decorative gemstone carving, specimen collecting, and jewelry.
Geological facts
Quartz is one of the most abundant minerals on Earth, and when combined with tourmaline, it creates highly contrasting and sought-after collector specimens.
Field identification & locations
Identify by its distinct white translucent quartz matrix contrasted against opaque, striated black tourmaline needles. Found globally, notably in Brazil, Madagascar, and the USA.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous