mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and a trigonal crystal system. It exhibits conchoidal fracture with no true cleavage.
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 with a vitreous luster, and a trigonal crystal system. It exhibits conchoidal fracture with no true cleavage.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich magmas and hydrothermal fluids.
Uses & applications
Widely used in electronics, glassmaking, precision instruments, and gemstone jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified easily by its hexagonal crystal habit and inability to be scratched by a steel knife. Found globally in almost all geological settings.
