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, transparent to opaque, vitreous luster, hexagonal crystal system, and conchoidal fracture.

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Physical properties

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

Formation & geological history

Formed in various geological environments including igneous, metamorphic, and sedimentary rocks through silica-rich fluid precipitation.

Uses & applications

Used in electronics, glassmaking, abrasives, gemstones, and ornamental carvings.

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 worldwide in virtually all rock types.