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 hexagonal crystal system.

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Physical properties

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

Formation & geological history

Formed in igneous, metamorphic, and sedimentary environments through the cooling and precipitation of silica-rich solutions.

Uses & applications

Widely used in electronics, glassmaking, precision instruments, and gemstone jewelry.

Geological facts

Quartz is one of the most abundant and varied minerals in Earth's continental crust.

Field identification & locations

Identified by its high hardness, lack of cleavage, and distinct crystal shape; found globally in veins and pegmatites.