mineral
Quartz Crystal in Matrix
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, clear to translucent color, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, clear to translucent color, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed in hydrothermal veins and pegmatites through the cooling and precipitation of silica-rich fluids over millions of years.
Uses & applications
Used in electronics, oscillators, gemstone carving, and popular among mineral collectors.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties, meaning it can generate an electrical charge under mechanical stress.
Field identification & locations
Easily identified by its characteristic hexagonal crystal shape and hardness that can scratch glass. Common worldwide, particularly in pegmatites and metamorphic veins.
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