mineral
Clear Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, vitreous luster, trigonal crystal system, conchoidal fracture with no cleavage, and a specific gravity of 2.65.
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Physical properties
Mohs hardness of 7, vitreous luster, trigonal crystal system, conchoidal fracture with no cleavage, and a specific gravity of 2.65.
Formation & geological history
Crystallizes from silica-rich magma in igneous rocks or precipitates from hydrothermal fluids across diverse geological eras.
Uses & applications
Extensively used in electronics for its piezoelectric properties, glassmaking, abrasives, and gemstone jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and produces an electric charge when subjected to mechanical stress.
Field identification & locations
Identified in the field by its hardness (scratches glass easily) and lack of cleavage planes; found worldwide in pegmatites and veins.
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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
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary