mineral
White Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white or milky color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, white or milky color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and igneous, metamorphic, and sedimentary rocks through silica-rich fluid precipitation.
Uses & applications
Used in glassmaking, electronics, optics, countertops, and gemstone carving.
Geological facts
Milky quartz gets its cloudy appearance from microscopic fluid inclusions trapped during crystal growth.
Field identification & locations
Easily identified by its high hardness, inability to be scratched by steel, and conchoidal fracture; found worldwide in virtually all geological environments.
