mineral
Clear Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale), Color: Colorless/Transparent, Luster: Vitreous, Crystal structure: Hexagonal/Trigonal, Cleavage: None/Conchoidal fracture, Specific gravity: 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: 7 (Mohs scale), Color: Colorless/Transparent, Luster: Vitreous, Crystal structure: Hexagonal/Trigonal, Cleavage: None/Conchoidal fracture, Specific gravity: 2.65
Formation & geological history
Formed at all temperatures from igneous magmas, hydrothermal veins, and metamorphic cycles throughout geological history. It crystallizes from silica-rich solutions in caves, cracks, and pockets.
Uses & applications
Extensively used in electronics for its piezoelectric properties, glass manufacturing, precision optics, jewelry, and as a popular collector's gemstone.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. It was historically used to make stone tools and has been revered in many cultures for spiritual purposes.
Field identification & locations
Identify by its hardness (scratches glass), lack of cleavage, and characteristic hexagonal crystal points. Found worldwide in massive variety and well-formed crystals.
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
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