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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale, typically colorless or white, vitreous luster, hexagonal crystal system, and lacks 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 Mohs scale, typically colorless or white, vitreous luster, hexagonal crystal system, and lacks cleavage with conchoidal fracture.

Formation & geological history

Forms in a wide variety of geological environments, most commonly crystallized from silica-rich magmas and hydrothermal veins.

Uses & applications

Used extensively 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 strong piezoelectric properties.

Field identification & locations

Easily identified by its distinct hexagonal crystal habit, high hardness that scratches glass, and conchoidal fracture.