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, transparent to translucent, and hexagonal crystal system with no cleavage.

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Physical properties

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

Formation & geological history

Formed in hydrothermal veins, igneous pegmatites, and sedimentary environments over millions of years.

Uses & applications

Widely used in electronics, glassmaking, ornamental objects, and gemstone jewelry.

Geological facts

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

Field identification & locations

Identified by its conchoidal fracture, high hardness, and lack of reactivity with acid. Common globally.