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

White Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, white or milky color, vitreous to greasy luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, white or milky color, vitreous to greasy luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.

Formation & geological history

Forms in wide varieties of geological environments, including igneous, metamorphic, and sedimentary rocks, often crystallizing from silica-rich hydrothermal solutions.

Uses & applications

Used widely in glassmaking, electronics, abrasives, and decorative gemstone carving.

Geological facts

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

Field identification & locations

Easily identified by its high hardness (scratches glass) and lack of cleavage; found globally in veins, pegmatites, and beach sands.