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, transparent to translucent with vitreous luster, hexagonal crystal system, and no cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, transparent to translucent with vitreous luster, hexagonal crystal system, and no cleavage.

Formation & geological history

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

Uses & applications

Widely used in electronics, glassmaking, precision instruments, and as a popular gemstone or collectible specimen.

Geological facts

Quartz is one of the most abundant and structurally diverse minerals found in the Earth's continental crust.

Field identification & locations

Easily identified by its high hardness (scratches glass), conchoidal fracture, and lack of cleavage; found globally.