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, typically white or translucent, vitreous luster, and trigonal crystal structure with conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, typically white or translucent, vitreous luster, and trigonal crystal structure with conchoidal fracture.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich fluids.

Uses & applications

Used in electronics, glassmaking, abrasives, and ornamental jewelry.

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 ability to scratch glass; found worldwide in virtually all geological settings.