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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Mohs hardness of 7, white to clear color, vitreous luster, hexagonal crystal system, conchoidal fracture.

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Physical properties

Mohs hardness of 7, white to clear color, vitreous luster, hexagonal crystal system, conchoidal fracture.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through cooling magma or precipitation from hydrothermal solutions.

Uses & applications

Used in electronics, glassmaking, abrasive materials, and ornamental jewelry or crystal collections.

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 characteristic conchoidal fracture. Found worldwide in nearly all geological settings.