
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. It typically appears colorless or white, but impurities can produce various colors.
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, vitreous luster, conchoidal fracture, and hexagonal crystal system. It typically appears colorless or white, but impurities can produce various colors.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich solutions or magmas over geological timescales.
Uses & applications
Widely used in electronics, glassmaking, construction materials, and as gemstones or ornamental specimens in jewelry.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties, making it essential in timekeeping devices.
Field identification & locations
Identified easily by its distinct hardness (scratches glass), lack of cleavage, and conchoidal fracture. Found worldwide in nearly every geological setting.