mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to milky color with a vitreous to greasy luster, trigonal crystal system, and no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, white to milky color with a vitreous to greasy luster, trigonal crystal system, and no cleavage.
Formation & geological history
Forms primarily from hydrothermal solutions at high temperatures, crystallizing in veins and pegmatites worldwide.
Uses & applications
Used in ornamental carvings, gemstone fabrication, and as a raw source of silicon for electronics and glassmaking.
Geological facts
It is the most common variety of crystalline quartz, colored white by microscopic fluid inclusions trapped during formation.
Field identification & locations
Easily identified by its conchoidal fracture, lack of cleavage, and high hardness that scratches glass; found globally.
