mineral
Quartz Crystal
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, clear to white color, 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, clear to white color, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Forms in a wide variety of geological environments, commonly crystallizing from silica-rich hydrothermal veins or cooling magmas.
Uses & applications
Used in electronics, watchmaking, glass manufacturing, gemstones, and metaphysical collections.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its distinct hardness (scratches glass), lack of cleavage, and characteristic crystal habit. Found worldwide.
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