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, hexagonal crystal system with conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, transparent to translucent, hexagonal crystal system with conchoidal fracture.

Formation & geological history

Forms in wide variety of environments including igneous, metamorphic, and sedimentary rocks through hydrothermal veins and crystallization from silica-rich fluids.

Uses & applications

Used in electronics, glassware, abrasives, gemstones, and construction materials.

Geological facts

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

Field identification & locations

Identified by its high hardness, lack of cleavage, and distinct conchoidal fracture; found globally in nearly all geological settings.