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 with a vitreous luster, hexagonal crystal system, and lacks cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, hexagonal crystal system, and lacks cleavage.

Formation & geological history

Formed in hydrothermal veins and pegmatites, precipitating from silica-rich solutions at varying temperatures over millions of years.

Uses & applications

Widely used in electronics, oscillator clocks, glass manufacturing, gemstones, and metaphysical collections.

Geological facts

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

Field identification & locations

Easily identified by its distinct crystal habit and scratch resistance to steel; found worldwide and completely consistent with the geological setting of southern Brazil.