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 transparent, vitreous luster, trigonal crystal system, conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, typically white or transparent, vitreous luster, trigonal crystal system, conchoidal fracture.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through cooling magma or precipitation from silica-rich hydrothermal solutions.

Uses & applications

Used in electronics, glassmaking, precision instruments, countertops, and gemstone carving.

Geological facts

Quartz is one of the most abundant minerals 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 easily; found worldwide in virtually all geological settings.