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.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system.

Formation & geological history

Formed via crystallization from silica-rich hydrothermal solutions and magma across diverse geological eras.

Uses & applications

Used widely in glassmaking, electronics, oscillators, abrasives, and as a popular gemstone specimen.

Geological facts

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

Field identification & locations

Identified by its high hardness, lack of cleavage, and characteristic glassy luster; found globally in various rock types.