mineral
Druzy Quartz on Quartz Base
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale. Color: Dark brownish-grey druzy crystal crust over translucent milky-to-clear quartz base. Luster: Vitreous to sparkling. Crystal System: Trigonal.
- Hardness
- 7 on Mohs scale
- Luster
- Vitreous to sparkling
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Physical properties
Hardness: 7 on Mohs scale. Color: Dark brownish-grey druzy crystal crust over translucent milky-to-clear quartz base. Luster: Vitreous to sparkling. Crystal System: Trigonal.
Formation & geological history
Formed from silica-rich hydrothermal solutions precipitating tiny quartz crystals over a larger quartz matrix within cavities or veins.
Uses & applications
Used primarily as mineral specimens for collectors, decorative home decor items, and in crystal healing practices.
Geological facts
Druzy (or drusy) refers to a coating of fine, sparkling crystals on the surface of a rock or mineral matrix, creating a glittery effect like sugar crystals.
Field identification & locations
Identified by the glittery coating of tiny sparkling crystal terminations over a solid quartz substrate. Commonly found in Brazil, Uruguay, and Madagascar.
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