mineral
White Quartz
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, white to milky color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, white to milky color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, no true cleavage, specific gravity of 2.65.
Formation & geological history
Forms in a wide variety of geological environments, commonly in hydrothermal veins, pegmatites, and as a primary component of igneous, metamorphic, and sedimentary rocks.
Uses & applications
Used in electronics, glassware, abrasives, gemstones, and ornamental carvings.
Geological facts
Quartz is one of the most abundant and widely distributed minerals found on Earth's continental crust.
Field identification & locations
Easily identified by its hardness (scratches glass), conchoidal fracture, and lack of cleavage. Found worldwide.
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Metamorphic
Potassium Feldspar (Orthoclase)
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mineral