mineral
Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and forms hexagonal crystal systems without cleavage.
Identified More mineral →
Explore Quartz Crystal 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 forms hexagonal crystal systems without cleavage.
Formation & geological history
Formed through the precipitation from silica-rich hydrothermal solutions or cooling of magma, found globally in igneous, metamorphic, and sedimentary rocks.
Uses & applications
Widely used in electronics for oscillators, glass manufacturing, abrasives, and as a popular gemstone and mineral specimen for collectors.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties, generating an electric charge under mechanical stress.
Field identification & locations
Identified easily by its crystal habit, high hardness that scratches glass, and lack of cleavage; commonly sourced from Brazil, Arkansas, and the Alps.
