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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, and no cleavage with conchoidal fracture.

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, hexagonal crystal system, and no cleavage with conchoidal fracture.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through cooling magma or precipitation from silica-rich solutions.

Uses & applications

Used in electronics, glassmaking, precision instruments, and as a semi-precious gemstone in jewelry.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.

Field identification & locations

Easily identified by its high hardness, scratch resistance on glass, and distinct conchoidal fracture found worldwide.