mineral
Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically clear or white, vitreous luster, hexagonal crystal system, and specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, typically clear or white, vitreous luster, hexagonal crystal system, and specific gravity of 2.65.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and sedimentary environments globally across various geological ages.
Uses & applications
Used extensively in electronics, glassmaking, abrasive powders, and gemstone jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified by its high hardness, lack of cleavage, and distinct conchoidal fracture. Found worldwide in nearly all rock types.
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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