mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 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)
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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 from cooling silica-rich magma or hydrothermal veins; can be found in igneous, metamorphic, and sedimentary environments globally.
Uses & applications
Used in electronics (oscillators), optics, glassmaking, jewelry (as a gemstone), and metaphysical practices.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. It is piezoelectric, meaning it generates an electric charge when mechanical stress is applied.
Field identification & locations
Identify by its hardness (scratches glass), glass-like appearance, and lack of cleavage. Commonly found in riverbeds, mountains, and mines in countries like Brazil and the USA.
