mineral
Quartz Druzy
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale), Color: Clear to white/off-white, Luster: Vitreous to Adamantine, Crystal Structure: Trigonal (hexagonal prisms), Cleavage: None (conchoidal fracture), Specific Gravity: 2.65
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Physical properties
Hardness: 7 (Mohs scale), Color: Clear to white/off-white, Luster: Vitreous to Adamantine, Crystal Structure: Trigonal (hexagonal prisms), Cleavage: None (conchoidal fracture), Specific Gravity: 2.65
Formation & geological history
Formed via hydrothermal precipitation where silica-rich fluids deposit tiny crystals in rock cavities or fractures. Common in vugs of sedimentary rocks like limestone or volcanic geodes.
Uses & applications
Primarily used in jewelry (as pendants or earrings), metaphysical collections, and as decorative mineral specimens.
Geological facts
The term 'druzy' refers to a coating of fine crystals on a rock surface. Quartz is the most common mineral to form druzy, creating a 'sugar-coated' or 'glitter' effect due to the many tiny crystal facets reflecting light.
Field identification & locations
Identified by its signature sparkling 'sugary' appearance and high hardness (it can scratch glass). Commonly found in geodes or lining the walls of veins in various geological environments.
