mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale. Color ranges from clear and white to yellow, brown, or smoky. Vitreous luster with hexagonal crystal structure and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale. Color ranges from clear and white to yellow, brown, or smoky. Vitreous luster with hexagonal crystal structure and conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of magma or precipitation from silica-rich hydrothermal solutions.
Uses & applications
Widely used in electronics, glassmaking, precision instruments, and gemstone jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust after feldspar. It exhibits piezoelectric properties, making it useful in electronic oscillators.
Field identification & locations
Easily identified by its distinct crystal habit, high hardness (scratches glass), and lack of cleavage. Found worldwide in nearly every geological environment.
