mineral

White Quartz

Silicon Dioxide (SiO2)

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

Identified July 30, 2026More mineral →

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Physical properties

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

Formation & geological history

Forms in a wide range of geological environments, most commonly in igneous rocks like pegmatites and granites, as well as hydrothermal veins and sedimentary deposits.

Uses & applications

Used in electronics, oscillators, glassmaking, abrasive powders, and as a semi-precious gemstone or ornamental specimen in jewelry and decor.

Geological facts

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

Field identification & locations

Easily identified by its high hardness (scratches glass), lack of cleavage, and common white or milky appearance. Found globally in almost all rock types.