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.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system.

Formation & geological history

Formed from molten magma cooling in igneous rocks or precipitated from hydrothermal solutions in various geological environments.

Uses & applications

Used in glassmaking, electronics, semiconductor manufacturing, and as ornamental gemstones.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.

Field identification & locations

Identify by its distinct lack of cleavage, scratch resistance to steel, and common white to clear appearance found globally.