mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale. Color ranges from clear and white to smoky or yellow. Luster is vitreous (glassy) with a hexagonal crystal system and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale. Color ranges from clear and white to smoky or yellow. Luster is vitreous (glassy) with a hexagonal crystal system and conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of silica-rich solutions or magma over various geological timescales.
Uses & applications
Used widely in electronics, glassmaking, 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 (scratches glass), lack of cleavage, and distinct hexagonal crystal habit when well-formed. Found worldwide.
