
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, vitreous luster, hexagonal crystal system, and no distinct cleavage.
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Physical properties
Mohs hardness of 7, vitreous luster, hexagonal crystal system, and no distinct cleavage.
Formation & geological history
Formed in hydrothermal veins and igneous or metamorphic rocks through crystallization from silica-rich fluids.
Uses & applications
Widely used in electronics, glassmaking, and gemstone jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identify by its hardness (scratches glass) and conchoidal fracture; common worldwide.