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, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, white or milky color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.

Formation & geological history

Forms primarily from hydrothermal veins, cooling magma, and metamorphic processes across various geological eras.

Uses & applications

Used in glassmaking, electronics, abrasives, gemstones, and decorative items.

Geological facts

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

Field identification & locations

Identified easily by its high hardness (scratches glass) and lack of cleavage. Found worldwide in pegmatites and sedimentary rocks.