mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, colorless or white, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, colorless or white, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments from cooling magma or precipitation from silica-rich hydrothermal solutions.
Uses & applications
Used in electronics, glassmaking, precision instruments, and as a semi-precious gemstone in jewelry.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture; found worldwide in virtually all geological settings.
