mineral
Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous 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, transparent to translucent with a vitreous luster, hexagonal crystal system, and exhibits conchoidal fracture with no true cleavage.
Formation & geological history
Forms from hydrothermal solutions and molten magma in igneous, metamorphic, and sedimentary environments over millions of years.
Uses & applications
Widely used in electronics, oscillators, glassmaking, abrasive manufacturing, and as a popular gemstone or specimen for mineral collectors.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties, generating an electric charge under mechanical stress.
Field identification & locations
Identified easily by its hexagonal prism shape, striations on crystal faces, and high hardness that scratches glass; found worldwide.
