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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Typically colorless or white, but can appear in various colors due to impurities.

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Physical properties

Hardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Typically colorless or white, but can appear in various colors due to impurities.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through hydrothermal precipitation, crystallization from magma, or silica deposition.

Uses & applications

Used widely in glassmaking, electronics, abrasives, and decorative gemstones or ornamental carvings.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties, making it essential for clocks and electronic oscillators.

Field identification & locations

Identified easily by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture. Found worldwide in nearly all geological settings.