mineral

White Quartz

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: White to milky; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: White to milky
Luster: Vitreous (glassy)

Identified May 25, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: White to milky; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed from molten magma as it cools or by hydrothermal activity. Quartz is found in all three rock types (igneous, metamorphic, and sedimentary) across most geological eras.

Uses & applications

Used in glass manufacturing, electronics (due to piezoelectric properties), construction, abrasives, and as semi-precious gemstones in jewelry.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Its name comes from the German word 'quarz' and it has been used since ancient times for carving and tools.

Field identification & locations

Identify by its hardness (it scratches glass easily) and lack of cleavage. Commonly found in riverbeds, mountains, and beaches. Collectors look for clear hexagonal crystal points.