mineral

White Quartz

Quartz (Silicon Dioxide, SiO2)

Hardness of 7 on the Mohs scale; Color is typically white or milky; Luster is vitreous to greasy; Crystal system is hexagonal (trigonal); Conchoidal fracture; Specific gravity is 2.65.

Identified August 5, 2026More mineral →

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Physical properties

Hardness of 7 on the Mohs scale; Color is typically white or milky; Luster is vitreous to greasy; Crystal system is hexagonal (trigonal); Conchoidal fracture; Specific gravity is 2.65.

Formation & geological history

Forms in a wide variety of geological environments, most commonly as a primary mineral in igneous rocks like granite, in hydrothermal veins, and as detrital grains in sedimentary rocks.

Uses & applications

Used in electronics, oscillators, glassmaking, abrasive materials, gemstone carving, and ornamental jewelry.

Geological facts

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

Field identification & locations

Easily identified by its hardness (scratches glass), lack of cleavage, and distinct conchoidal fracture. Found globally in almost every geological setting.