
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and exhibits no true cleavage with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and exhibits no true cleavage with conchoidal fracture.
Formation & geological history
Forms primarily from cooling magma in igneous rocks, precipitation in hydrothermal veins, and as detrital grains in sedimentary environments.
Uses & applications
Widely used in electronics for oscillators, glassware manufacturing, gemstones, and abrasive materials.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and displays piezoelectric properties.
Field identification & locations
Identified by its distinct hexagonal crystal habit, high hardness that scratches glass, and lack of cleavage; found globally.