mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Typically colorless or white, but can vary widely due to impurities.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Typically colorless or white, but can vary widely due to impurities.
Formation & geological history
Formed through the crystallization of silica-rich hydrothermal solutions or cooling magma, commonly found in igneous, metamorphic, and sedimentary rocks across all geological eras.
Uses & applications
Widely used in electronics, glassmaking, abrasives, and as decorative gemstones or collector specimens.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Its piezoelectric properties make it essential for modern timekeeping and electronic oscillators.
Field identification & locations
Easily identified by its distinct crystal habit, high hardness that scratches glass, and lack of cleavage. Found globally in pegmatites, veins, and quartzites.
