mineral

Clear Quartz

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale. Color: Colorless or transparent. Luster: Vitreous (glassy). Crystal Structure: Trigonal. Cleavage: None, exhibits conchoidal fracture. Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Colorless or transparent
Luster: Vitreous (glassy)

Identified August 2, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale. Color: Colorless or transparent. Luster: Vitreous (glassy). Crystal Structure: Trigonal. Cleavage: None, exhibits conchoidal fracture. Specific Gravity: 2.65

Formation & geological history

Forms in hydrothermal veins, pegmatites, and as a secondary mineral in sedimentary environments. Can form over millions of years through the cooling and deposition of silica-rich fluids.

Uses & applications

Used in electronics (oscillators), optics, gemstone carving, and ornamental jewelry, as well as in metaphysical practices.

Geological facts

Clear quartz is often referred to as the 'universal crystal' because of its manifold uses in technology and healing. It is one of the most abundant minerals in the Earth's continental crust.

Field identification & locations

Easily identified by its high hardness (scratches glass), conchoidal fracture, and lack of cleavage. Found worldwide, with notable deposits in Brazil, the USA, Madagascar, and the Alps.