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, conchoidal fracture with no true cleavage.

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Physical properties

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

Formation & geological history

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

Uses & applications

Widely used in electronics, glassmaking, precision instruments, and gemstone carving.

Geological facts

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

Field identification & locations

Easily identified by its high hardness, conchoidal fracture, and lack of cleavage; found globally in nearly all geological settings.