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

White Quartz

Silicon Dioxide (SiO2)

Hardness: 7 on the Mohs scale, Color: White to milky white, Luster: Vitreous to greasy, Crystal Structure: Trigonal, Cleavage: None (exhibits conchoidal fracture), Specific Gravity: 2.65

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Physical properties

Hardness: 7 on the Mohs scale, Color: White to milky white, Luster: Vitreous to greasy, Crystal Structure: Trigonal, Cleavage: None (exhibits conchoidal fracture), Specific Gravity: 2.65

Formation & geological history

Forms in a wide range of geological environments, commonly in hydrothermal veins, pegmatites, and as a primary component of igneous, metamorphic, and sedimentary rocks.

Uses & applications

Used in electronics, glassmaking, abrasive materials, gemstone carving, and mineral collections.

Geological facts

Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties, meaning it can generate an electric charge under mechanical stress.

Field identification & locations

Identified by its high hardness (scratches glass), lack of cleavage, and vitreous luster. Commonly found worldwide in beaches, riverbeds, and mountainous regions.