mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7; typically white, clear, or milky; vitreous luster; hexagonal crystal system; lacks cleavage with conchoidal fracture.
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Physical properties
Mohs hardness of 7; typically white, clear, or milky; vitreous luster; hexagonal crystal system; lacks cleavage with conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of silica-rich magma or precipitation from hydrothermal solutions.
Uses & applications
Used widely in glassmaking, electronics, abrasive manufacturing, countertops, and gemstone carving.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture; found globally in nearly all geological settings.
