mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white or transparent, vitreous luster, hexagonal crystal system, and conchoidal fracture.
Identified More mineral →
Explore Quartz in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, typically white or transparent, vitreous luster, hexagonal crystal system, and conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich solutions or cooling magmas.
Uses & applications
Widely used in electronics, glassmaking, abrasives, gemstone jewelry, and decorative carvings.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its high hardness, lack of cleavage, and characteristic hexagonal crystal habit when well-formed.
More like this
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