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, typically yellow to brown in color due to irradiation or impurities, vitreous luster, and hexagonal crystal system.

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Physical properties

Hardness of 7 on the Mohs scale, typically yellow to brown in color due to irradiation or impurities, vitreous luster, and hexagonal crystal system.

Formation & geological history

Forms in hydrothermal veins, pegmatites, and sedimentary environments through the crystallization of silica-rich solutions.

Uses & applications

Used widely in electronics, glassmaking, and as a semi-precious gemstone in jewelry.

Geological facts

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

Field identification & locations

Identify by its lack of cleavage, conchoidal fracture, and inability to be scratched by steel.