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 trigonal crystal system with various colors including clear, white, and smoky.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system with various colors including clear, white, and smoky.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich solutions or cooling magma.

Uses & applications

Used extensively in electronics, glassmaking, abrasives, and ornamental jewelry.

Geological facts

Quartz is one of the most abundant minerals in Earth's continental crust and exhibits strong piezoelectric properties.

Field identification & locations

Identified easily by its distinct hardness (scratches glass), lack of cleavage, and hexagonal crystal habit when well-formed.