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

Quartz Crystal

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

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

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Physical properties

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

Formation & geological history

Forms primarily from cooling magma in igneous pegmatites or precipitating from hydrothermal solutions in various geological environments over millions of years.

Uses & applications

Widely used in electronics for oscillators, glass manufacturing, abrasives, and ornamental jewelry or crystal specimens.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties, generating electricity under mechanical stress.

Field identification & locations

Easily identified by its distinct hexagonal crystal habit and high hardness that scratches glass. Found worldwide in nearly all geological environments.