mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
Hardness: 7 on Mohs scale; Color: Colorless to white/milky; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Colorless to white/milky
- Luster
- Vitreous
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Physical properties
Hardness: 7 on Mohs scale; Color: Colorless to white/milky; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65
Formation & geological history
Formed through hydrothermal processes where silica-rich fluids cool or evaporate in rock cavities (vugs/geodes), creating a surface covered in tiny, sparkling crystals.
Uses & applications
Commonly used in jewelry (pendants and rings), crystal healing/spiritual practices, and as a popular decorative specimen for collectors.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Druzy quartz creates a 'sugar' effect that was historically overlooked but is now highly prized in modern artisan jewelry.
Field identification & locations
Identify in the field by its sparkling granular surface and its ability to scratch glass. Commonly found inside geodes or lining fractures in volcanic and sedimentary rocks worldwide.
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Mineral/Rock
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Green Apatite on Albite
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mineral