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, and conchoidal fracture.

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Physical properties

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

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through crystallization from silica-rich fluids or magma.

Uses & applications

Used extensively in electronics, glassmaking, precision instruments, and as a gemstone or decorative mineral specimen.

Geological facts

Quartz is one of the most abundant and structurally varied minerals found in the Earth's continental crust.

Field identification & locations

Identified by its high hardness, lack of cleavage, and distinct conchoidal fracture; found worldwide in virtually all geological settings.