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 typically colorless or white with occasional impurities.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and typically colorless or white with occasional impurities.

Formation & geological history

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

Uses & applications

Widely used in electronics, glassmaking, abrasives, and as gemstones or decorative mineral specimens.

Geological facts

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

Field identification & locations

Identified easily by its distinct hardness, lack of cleavage, and hexagonal crystal habit when well-formed; found globally.