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, transparent to opaque, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, transparent to opaque, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.

Formation & geological history

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

Uses & applications

Widely used in electronics, glassmaking, manufacturing, abrasives, and as a gemstone or specimen in jewelry and crystal collecting.

Geological facts

Quartz is one of the most abundant and structurally diverse minerals in the Earth's continental crust, exhibiting piezoelectric properties.

Field identification & locations

Easily identified by its distinct hardness, lack of cleavage, and conchoidal fracture. Found worldwide in nearly every geological environment.