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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale, typically white or colorless, vitreous luster, conchoidal fracture, specific gravity of 2.65.

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Physical properties

Hardness of 7 on Mohs scale, typically white or colorless, vitreous luster, conchoidal fracture, specific gravity of 2.65.

Formation & geological history

Formed in a wide variety of geological environments, commonly crystallizing from silica-rich hydrothermal veins and magma.

Uses & applications

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

Geological facts

Quartz is one of the most abundant and widely distributed minerals found on Earth's continental crust.

Field identification & locations

Easily identified by its high hardness (scratches glass) and lack of cleavage; extremely common worldwide.