Rock Identifier
Quartz (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.

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Physical properties

Hardness of 7 on Mohs scale, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through crystallization from silica-rich fluids at various temperatures and pressures.

Uses & applications

Widely used in electronics, glassmaking, construction aggregates, abrasive materials, and as a popular gemstone or lapidary specimen.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.

Field identification & locations

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