mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7; vitreous luster; transparent to translucent; hexagonal crystal system; conchoidal fracture with no true cleavage.
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Physical properties
Mohs hardness of 7; vitreous luster; transparent to translucent; hexagonal crystal system; conchoidal fracture with no true cleavage.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the precipitation from silica-rich hydrothermal solutions or cooling magmas.
Uses & applications
Used widely in electronics, glassmaking, abrasive materials, precision instruments, and gemstone jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified easily by its high hardness of 7, ability to scratch glass, and distinct conchoidal fracture. Found worldwide.
