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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system with colors ranging from clear to pink, white, or red-stained.

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Physical properties

Hardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system with colors ranging from clear to pink, white, or red-stained.

Formation & geological history

Forms primarily from cooling magma in igneous environments, precipitation in hydrothermal veins, and crystallization in metamorphic rocks.

Uses & applications

Used extensively in electronics, glassmaking, abrasives, and as ornamental gemstones in jewelry.

Geological facts

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

Field identification & locations

Identified easily by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture, commonly found worldwide in pegmatites and sandstones.