
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to opaque white color, vitreous luster, and hexagonal crystal system with 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, transparent to opaque white color, vitreous luster, and hexagonal crystal system with conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through crystallization from silica-rich fluids and magma.
Uses & applications
Used widely in glassmaking, electronics, oscillators, abrasives, and as a gemstone or ornamental mineral.
Geological facts
Quartz is one of the most abundant and ubiquitous minerals in Earth's continental crust.
Field identification & locations
Identified easily by its high hardness (scratches glass), lack of cleavage, and distinct conchoidal fracture found globally in veins and sands.