
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent color, 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, transparent to translucent color, vitreous luster, hexagonal crystal system, and conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through crystallization from silica-rich fluids and melts.
Uses & applications
Used in electronics, glassmaking, abrasives, and as a semi-precious gemstone in jewelry.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness, lack of cleavage, and conchoidal fracture. Found worldwide in nearly all geological settings.