mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Hardness: 7 on Mohs scale; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.
- Hardness
- 7 on Mohs scale
- Color
- Colorless/Transparent
- Luster
- Vitreous
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Physical properties
Hardness: 7 on Mohs scale; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.
Formation & geological history
Formed from cooling hydrothermal veins or igneous pegmatites. It is the most common mineral in the Earth's crust and can be found in rocks of all geological ages.
Uses & applications
Used in electronics for its piezoelectric properties, glass manufacturing, abrasives, and widely used in jewelry and decorative carvings.
Geological facts
Quartz is piezoelectric, meaning it generates an electric charge when mechanical pressure is applied. This is why it is used in watches and clocks for timekeeping.
Field identification & locations
Identified by its transparency, 7 hardness (scratches glass), and conchoidal (shell-like) fracture. Commonly found in riverbeds, mountains, and crystal-lined pockets in various rock types.
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