mineral

Quartz (Druzy)

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

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

Identified June 22, 2026More mineral →

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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.