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 brownish 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 brownish coloration.

Formation & geological history

Forms in virtually all geological environments through the crystallization of silica-rich hydrothermal solutions and magmas.

Uses & applications

Widely used in electronics for oscillators, glass manufacturing, abrasives, and ornamental gemstone carvings.

Geological facts

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

Field identification & locations

Easily identified by its high hardness, lack of cleavage, and characteristic conchoidal fracture found globally in veins and pegmatites.