Rock Identifier
Quartz (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale; white to clear color; vitreous luster; hexagonal crystal system; conchoidal fracture.

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Physical properties

Hardness of 7 on Mohs scale; white to clear color; vitreous luster; hexagonal crystal system; conchoidal fracture.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich fluids.

Uses & applications

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

Geological facts

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

Field identification & locations

Identified by its high hardness (scratches glass) and lack of cleavage; found globally in nearly all geological settings.