
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically clear or milky white, vitreous luster, hexagonal crystal system, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, typically clear or milky white, vitreous luster, hexagonal crystal system, and conchoidal fracture.
Formation & geological history
Formed from cooling magma in hydrothermal veins and pegmatites, occurring across a wide geological timescale.
Uses & applications
Widely used in electronics, oscillator frequency control, glassmaking, abrasives, and decorative 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 by its distinct hexagonal prismatic crystal habit, lack of cleavage, and ability to scratch glass easily.