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, vitreous luster, conchoidal fracture, and hexagonal crystal system. Colors range from clear white to yellow, pink, and brown.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Colors range from clear white to yellow, pink, and brown.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich hydrothermal solutions or cooling magma.

Uses & applications

Used widely in electronics, glassmaking, abrasives, gemstones, and ornamental carvings.

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, lack of cleavage, and vitreous luster. Found globally in almost all geological settings.