mineral
White Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white or milky color, vitreous to greasy luster, trigonal crystal system, and no true cleavage with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, white or milky color, vitreous to greasy luster, trigonal crystal system, and no true cleavage with conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of silica-rich solutions or magma.
Uses & applications
Used in glassmaking, electronics, abrasives, gemstones, and decorative landscape rock.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust.
Field identification & locations
Easily identified by its high hardness (scratches glass) and lack of cleavage; found globally in veins, pegmatites, and river gravels.
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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