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, clear to white color, vitreous luster, and hexagonal crystal system with no cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, clear to white color, vitreous luster, and hexagonal crystal system with no cleavage.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through cooling magma or precipitation from silica-rich solutions.

Uses & applications

Used extensively in electronics, glassmaking, construction materials, and as gemstones or lapidary specimens.

Geological facts

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

Field identification & locations

Easily identified by its high hardness, lack of cleavage, and distinct conchoidal fracture. Found globally.