mineral

Clear Quartz

SiO2 (Silicon Dioxide)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal); Cleavage: Indistinct/Conchoidal fracture; Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Colorless/Transparent
Luster: Vitreous

Identified May 4, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal); Cleavage: Indistinct/Conchoidal fracture; Specific Gravity: 2.65

Formation & geological history

Formed through the cooling of molten rock or by precipitation from hydrothermal veins. It occurs in almost all mineral environments, spanning all geological ages.

Uses & applications

Used in electronics (oscillators), manufacturing of glass and ceramics, gemstone jewelry, and as a popular specimen for mineral collectors.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Piezoelectric properties allow it to produce an electric voltage in response to physical pressure.

Field identification & locations

Identify by its ability to scratch glass and its lack of cleavage, typically showing a shell-like (conchoidal) fracture. Commonly found in granite, sandstone, and shale worldwide.