
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to opaque color, vitreous luster, hexagonal crystal system, and no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to opaque color, vitreous luster, hexagonal crystal system, and no cleavage.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through cooling magma or precipitation from hydrothermal solutions.
Uses & applications
Widely used in electronics, glassmaking, precision instruments, and as a gemstone or ornamental specimen.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its high hardness, lack of cleavage, and distinct crystal form; found globally in nearly all geological settings.