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 translucent with a vitreous luster, hexagonal crystal system, and no cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, hexagonal crystal system, and no cleavage.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich fluids.

Uses & applications

Used extensively in electronics, glassmaking, precision instruments, and gemstone jewelry.

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 distinct crystal habit, high hardness that scratches glass, and conchoidal fracture.