mineral
Clear Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, clear to milky white color, vitreous luster, hexagonal crystal structure, conchoidal fracture, and specific gravity of 2.65.
Identified More mineral →
Explore Clear 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, clear to milky white color, vitreous luster, hexagonal crystal structure, conchoidal fracture, and specific gravity of 2.65.
Formation & geological history
Forms in igneous, sedimentary, and metamorphic rocks, typically from silica-rich hydrothermal solutions or as a primary mineral in pegmatites.
Uses & applications
Used in electronics, optics, glassmaking, and jewelry, as well as being a popular collectible specimen.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and is known for its piezoelectric properties.
Field identification & locations
Identified by its hardness (scratches glass), conchoidal fracture, and lack of cleavage; commonly found worldwide.
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