
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, hexagonal crystal system, and no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, hexagonal crystal system, and no cleavage.
Formation & geological history
Formed from cooling hydrothermal solutions rich in silica within cavities and fractures of host rocks over millions of years.
Uses & applications
Used in electronics, watchmaking, precision instruments, optical lenses, and as a popular gemstone and mineral specimen.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness, hexagonal crystal habit, and conchoidal fracture; found worldwide in diverse geological environments.