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, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.

Formation & geological history

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

Uses & applications

Used in electronics, glassmaking, abrasive materials, and ornamental jewelry.

Geological facts

Quartz is one of the most abundant and varied minerals in Earth's continental crust, existing in numerous crystalline and microcrystalline varieties.

Field identification & locations

Identified by its high hardness, lack of cleavage, and distinct conchoidal fracture; found worldwide in virtually all geological settings.