mineral

White Quartz

Silicon Dioxide (SiO2)

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

Identified July 31, 2026More mineral →

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Physical properties

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

Formation & geological history

Forms in a wide variety of geological environments, commonly crystallizing from silica-rich hydrothermal veins, pegmatites, and igneous rocks like granite, as well as being a primary component of sedimentary quartz arenites.

Uses & applications

Used in electronics, glassmaking, abrasive powders, countertops, and as a semi-precious gemstone or mineral specimen for collectors.

Geological facts

Quartz is one of the most abundant and widely distributed minerals on Earth's continental crust. Its piezoelectric properties make it essential in modern electronics for timekeeping and frequency control.

Field identification & locations

Easily identified by its hardness (it can scratch glass), lack of cleavage, and conchoidal fracture. It is found globally, particularly in pegmatites and quartz veins.