
mineral
Rock Crystal Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, transparent to translucent, vitreous luster, trigonal crystal system with no cleavage.
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Physical properties
Mohs hardness of 7, transparent to translucent, vitreous luster, trigonal crystal system with no cleavage.
Formation & geological history
Forms primarily from hydrothermal veins and cooling magma chambers over millions of years.
Uses & applications
Widely used in jewelry, electronics, optical lenses, and decorative carvings.
Geological facts
Ancient civilizations believed rock crystal was permanently frozen celestial ice.
Field identification & locations
Identified by its high hardness, conchoidal fracture, and hexagonal prism habit; globally distributed.