mineral

White Quartz

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Milky white to translucent; Luster: Vitreous (glassy); Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65.

Hardness: 7 on Mohs scale
Color: Milky white to translucent
Luster: Vitreous (glassy)

Identified March 22, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Milky white to translucent; Luster: Vitreous (glassy); Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65.

Formation & geological history

Formed through the cooling of silica-rich magma or from hydrothermal veins. It is one of the most abundant minerals in the Earth's crust and can be found in rocks from all geological ages.

Uses & applications

Used in glass manufacturing, electronics (due to piezoelectric properties), abrasives, as a gemstone in jewelry, and extensively in construction/countertops.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Pure quartz is clear, but tiny fluid inclusions trapped during growth give milky quartz its distinct white color.

Field identification & locations

Identify in the field by its hardness (it will scratch glass) and lack of cleavage. Found globally in mountainous regions, riverbeds, and as vein-fillings in other rock types.