mineral
Quartz
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system. Typically colorless or white, but impurities can produce various colors.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system. Typically colorless or white, but impurities can produce various colors.
Formation & geological history
Forms in a wide range of geological environments, including igneous, metamorphic, and sedimentary rocks, often crystallizing from silica-rich hydrothermal veins.
Uses & applications
Used extensively in electronics, glassmaking, precision instruments, and as a gemstone or decorative mineral specimen in jewelry.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits strong piezoelectric properties, making it vital for keeping accurate time in watches.
Field identification & locations
Easily identified by its high hardness (scratches glass), lack of cleavage, and distinct conchoidal fracture. Found worldwide in nearly every geological setting.
