mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to opaque, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to opaque, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich fluids and melts over geological timescales.
Uses & applications
Widely used in electronics for oscillators, glass manufacturing, abrasives, and as a popular gemstone and ornamental material in jewelry.
Geological facts
Quartz is one of the most abundant and varied minerals in Earth's continental crust, existing in numerous distinct color varieties like amethyst and citrine.
Field identification & locations
Easily identified by its distinct hexagonal crystal habit, high hardness that scratches glass, and lack of cleavage. Found worldwide in nearly every geological setting.
