mineral
Quartz (Druzy / Crystalline)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale. Color: Translucent yellowish-tan to pale champagne. Luster: Vitreous to sparkling (druzy surface). Crystal system: Trigonal/Hexagonal. Cleavage: None (conchoidal fracture).
- Hardness
- 7 on Mohs scale
- Color
- Translucent yellowish-tan to pale champagne
- Luster
- Vitreous to sparkling (druzy surface)
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Physical properties
Hardness: 7 on Mohs scale. Color: Translucent yellowish-tan to pale champagne. Luster: Vitreous to sparkling (druzy surface). Crystal system: Trigonal/Hexagonal. Cleavage: None (conchoidal fracture).
Formation & geological history
Formed via hydrothermal activity where silica-rich fluids deposit microscopic quartz crystals inside rock cavities, geodes, or fractures over thousands to millions of years.
Uses & applications
Used extensively in lapidary arts, metaphysical jewelry, decorative specimens, and as a gemstone. Also used industrially in electronics and optics when pure.
Geological facts
Druzy quartz features a coating of fine crystals crystallizing on top of a mineral matrix. Quartz is the second most abundant mineral in Earth's continental crust.
Field identification & locations
Identified by its sparkling micro-crystalline surface texture and scratch resistance to steel (hardness 7). Commonly found worldwide in pegmatites, hydrothermal veins, and geodes.
