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, variable colors, vitreous luster, trigonal crystal system, and no cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, variable colors, vitreous luster, trigonal crystal system, and no cleavage.

Formation & geological history

Forms in diverse geological environments including igneous, metamorphic, and sedimentary rocks through hydrothermal processes or crystallization from magma.

Uses & applications

Widely used in electronics, glassmaking, precision instruments, and as gemstones or mineral collector specimens.

Geological facts

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

Field identification & locations

Identified by its high hardness, conchoidal fracture, and lack of cleavage; found globally in almost all rock types.