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, colorless to white, and exhibits conchoidal fracture with no true cleavage.

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, colorless to white, and exhibits conchoidal fracture with no true cleavage.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich fluids and melts over various geological ages.

Uses & applications

Used widely in glassmaking, electronics, abrasives, and as a gemstone or ornamental carving material.

Geological facts

Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties, making it essential for clocks and electronics.

Field identification & locations

Identified easily by its high hardness (scratches glass) and lack of cleavage; found globally in almost all geological terrains.