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, white to colorless color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, white to colorless color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the cooling of magma or precipitation from silica-rich hydrothermal solutions.

Uses & applications

Widely used in electronics, glassmaking, optics, and as a popular gemstone or decorative mineral specimen for collectors.

Geological facts

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

Field identification & locations

Easily identified by its distinct hardness, lack of cleavage, and characteristic conchoidal fracture; found globally in almost all geological settings.