mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale. Varies in color from clear to white, gray, or yellowish, with a vitreous luster and trigonal crystal structure.
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. Varies in color from clear to white, gray, or yellowish, with a vitreous luster and trigonal crystal structure.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich hydrothermal solutions or magmas.
Uses & applications
Used extensively in electronics, glassmaking, abrasives, and as semi-precious gemstone jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Found worldwide in almost all geological environments; easily identified by its conchoidal fracture and resistance to scratching.
