mineral

Clear Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

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

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

Identified April 12, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed through the crystallization of magma or from hydrothermal veins. It is found in almost all geological environments and can be from any geological age.

Uses & applications

Used in electronics (oscillators), manufacturing of glass and ceramics, jewelry (gemstones), and as decorative collector pieces.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Its piezoelectric properties allow it to produce an electric charge when mechanical pressure is applied.

Field identification & locations

Identify by its ability to scratch glass and its lack of cleavage (it breaks with a conchoidal fracture). It is found worldwide, especially in mountainous regions like Arkansas (USA), Brazil, and Madagascar.