mineral

Quartz (Clear/White)

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Colorless to white/cloudy; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: Indistinct/None; Fracture: Conchoidal; Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Colorless to white/cloudy
Luster: Vitreous (glassy)

Identified April 13, 2026More mineral →

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Physical properties

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 igneous, metamorphic, and sedimentary environments across all geological ages.

Uses & applications

Used in electronics (oscillators), glass manufacturing, abrasives, gemstones for jewelry, and as a popular specimen for mineral collectors.

Geological facts

Quartz is piezoelectric, meaning it generates an electric charge when mechanical pressure is applied. This property makes it essential for timekeeping in watches and clocks.

Field identification & locations

Identify in the field by its hardness (it will easily scratch glass) and its lack of cleavage (it breaks into irregular, curved shards). It is found globally, often in mountain ranges, riverbeds, and as part of granite outcrops.