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. Color ranges from colorless to white, grey, or various shades depending on impurities. Vitreous luster and trigonal crystal system with conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale. Color ranges from colorless to white, grey, or various shades depending on impurities. Vitreous luster and trigonal crystal system with conchoidal fracture.

Formation & geological history

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

Uses & applications

Widely used in electronics, glassmaking, abrasives, and as a gemstone or ornamental mineral.

Geological facts

Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties.

Field identification & locations

Identified by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture. Found worldwide in nearly all geological settings.