
mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to translucent color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, white to translucent color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms primarily from hydrothermal veins, cooling magma, and metamorphic processes, occurring across diverse geological ages.
Uses & applications
Used in glassmaking, abrasives, electronics, and as an ornamental gemstone or specimen for collectors.
Geological facts
Milky quartz is the most common variety of crystalline quartz, taking its cloudy appearance from microscopic fluid inclusions trapped during growth.
Field identification & locations
Identified easily by its lack of cleavage, high hardness that scratches glass, and distinct white coloration; found worldwide.