mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to milky 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 milky translucent color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Formed from hydrothermal solutions rich in silica cooling and crystallizing within rock fractures and cavities across various geological eras.
Uses & applications
Used in glassmaking, abrasives, electronics for oscillator components, and as a decorative or lapidary stone.
Geological facts
Milky quartz is the most common variety of quartz found on Earth, often appearing white due to microscopic fluid inclusions trapped during growth.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and characteristic cloudy white appearance; found worldwide in metamorphic, igneous, and sedimentary environments.
