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, transparent to opaque white color, vitreous luster, and hexagonal crystal system with conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, transparent to opaque white color, vitreous luster, and hexagonal crystal system with conchoidal fracture.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through crystallization from silica-rich fluids and magma.

Uses & applications

Used widely in glassmaking, electronics, oscillators, abrasives, and as a gemstone or ornamental mineral.

Geological facts

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

Field identification & locations

Identified easily by its high hardness (scratches glass), lack of cleavage, and distinct conchoidal fracture found globally in veins and sands.