Rock Identifier
Quartz Crystal (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz Crystal

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, transparent to translucent with vitreous luster, and forms in the trigonal crystal system with conchoidal fracture.

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 vitreous luster, and forms in the trigonal crystal system with conchoidal fracture.

Formation & geological history

Forms hydrothermally in igneous, metamorphic, and sedimentary environments over millions of years as silica-rich fluids cool and precipitate.

Uses & applications

Widely used in electronics, oscillator manufacturing, glass production, ornamental items, and jewelry.

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

Easily identified by its characteristic crystal shape, high hardness that scratches glass, and lack of cleavage. Found worldwide.