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 trigonal crystal system with clear to white coloration.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system with clear to white coloration.

Formation & geological history

Formed in a wide range of geological environments, frequently crystallizing from hydrothermal veins and silica-rich magmas.

Uses & applications

Used extensively in electronics, glassmaking, precision instruments, and lapidary arts for 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 hardness, lack of cleavage, and ability to scratch glass; found globally in igneous, metamorphic, and sedimentary rocks.