mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white, clear, or milky with a vitreous to greasy luster, hexagonal crystal system, and exhibits conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, typically white, clear, or milky with a vitreous to greasy luster, hexagonal crystal system, and exhibits conchoidal fracture with no true cleavage.
Formation & geological history
Formed in a wide variety of environments including igneous, metamorphic, and sedimentary rocks, frequently precipitating from hydrothermal veins or crystallizing from silica-rich magmas.
Uses & applications
Used in electronics, oscillators, glassmaking, abrasives, and as a semi-precious gemstone in jewelry and ornamentation.
Geological facts
Quartz is one of the most abundant and widely distributed minerals found on Earth's continental crust, known for its piezoelectric properties.
Field identification & locations
Easily identified by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture. Found worldwide in nearly every geological setting.
