mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white or colorless, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65
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, typically white or colorless, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65
Formation & geological history
Formed in a wide variety of geological environments including igneous, metamorphic, and sedimentary rocks, often crystallizing from silica-rich hydrothermal veins or cooling magma.
Uses & applications
Used in electronics, oscillators, glassmaking, abrasives, and as a gemstone or ornamental mineral in jewelry.
Geological facts
Quartz is one of the most abundant and widely distributed minerals found on Earth's continental crust, and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its characteristic 7 Mohs hardness (can scratch glass) and lack of cleavage. Found globally in almost every rock type.
