mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Color varies widely from clear to milky white, grey, or brownish.
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Physical properties
Hardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Color varies widely from clear to milky white, grey, or brownish.
Formation & geological history
Forms in wide varieties of geological environments, including igneous, metamorphic, and sedimentary settings, often precipitating from silica-rich hydrothermal solutions.
Uses & applications
Used in electronics, glassmaking, abrasives, and as a gemstone or ornamental collector mineral.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties, making it essential for clocks and electronics.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture. Found worldwide in nearly all types of rock formations.
