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, conchoidal fracture, and hexagonal crystal system. It typically appears white, gray, or clear.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. It typically appears white, gray, or clear.

Formation & geological history

Formed in a wide range of geological environments, including igneous, metamorphic, and sedimentary rocks, often precipitating from hydrothermal solutions.

Uses & applications

Used extensively in electronics, glassmaking, abrasives, and as gemstones or decorative specimens.

Geological facts

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

Field identification & locations

Identified easily by its distinct hardness, lack of cleavage, and conchoidal fracture. Found worldwide in nearly all rock types.