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

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Physical properties

Hardness of 7 on Mohs scale, typically colorless or milky white, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.

Formation & geological history

Forms in a wide range of geological environments, including igneous, metamorphic, and sedimentary rocks, often crystallizing from hydrothermal veins.

Uses & applications

Widely used in electronics, glassmaking, precision instruments, abrasive materials, and as a popular gemstone or collector specimen.

Geological facts

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

Field identification & locations

Easily identified by its high hardness (scratches glass), conchoidal fracture, and lack of cleavage; found globally on every continent.