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, vitreous luster, conchoidal fracture, and hexagonal crystal system. Color varies widely from clear to brown or grey due to impurities.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Color varies widely from clear to brown or grey due to impurities.

Formation & geological history

Forms in a wide range of geological environments, prominently crystallizing from hydrothermal veins and cooling magma.

Uses & applications

Used extensively in electronics, glassmaking, precision instruments, and as gemstone or specimen material.

Geological facts

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

Field identification & locations

Identified easily by its distinct crystal habit and high hardness which scratches glass easily. Found globally in almost all rock types.