Rock Identifier
Quartz (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on 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 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 crystallization from silica-rich melts or hydrothermal solutions.

Uses & applications

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

Geological facts

Quartz is one of the most abundant and varied minerals on Earth, forming the primary component of many sandstones and granites.

Field identification & locations

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