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 white, clear, or colored by impurities.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Typically white, clear, or colored by impurities.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of magma or precipitation from hydrothermal solutions.
Uses & applications
Used extensively in electronics, glassmaking, abrasives, and as a semi-precious gemstone in jewelry.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust. Its piezoelectric properties make it essential for keeping time in watches.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and distinct conchoidal fracture. Found worldwide in nearly all geological settings.
