mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, transparent to translucent, vitreous luster, trigonal crystal system, conchoidal fracture.
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Physical properties
Mohs hardness of 7, transparent to translucent, vitreous luster, trigonal crystal system, conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich solutions or melts.
Uses & applications
Widely used in electronics, glassmaking, oscillators, abrasives, and as a gemstone or specimen for collectors.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness, conchoidal fracture, and lack of cleavage; found globally in pegmatites, veins, and sandstones.
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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