mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Hardness: 7 (Mohs), Color: Opaque white to translucent cream, Luster: Vitreous to greasy, Crystal System: Trigonal (Hexagonal), Cleavage: Indistinct/Conchoidal fracture, Specific Gravity: 2.65
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Physical properties
Hardness: 7 (Mohs), Color: Opaque white to translucent cream, Luster: Vitreous to greasy, Crystal System: Trigonal (Hexagonal), Cleavage: Indistinct/Conchoidal fracture, Specific Gravity: 2.65
Formation & geological history
Formed through the crystallization of silica-rich hydrothermal solutions or within pegmatites. The milky color is caused by microscopic inclusions of fluids or gas trapped during crystal growth.
Uses & applications
Used as a gemstone in tumbled form, for ornamental carvings, in the manufacturing of glass and ceramics, and as a source of silicon for electronics.
Geological facts
Milky quartz is one of the most common varieties of crystalline quartz. It is sometimes called 'Snow Quartz' in metaphysical circles and was used by ancient civilizations for tools and talismans.
Field identification & locations
Identified by its white color, inability to be scratched by steel, and lack of visible cleavage. Commonly found in veins within granite and metamorphic rocks across the globe.
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Mineral/Rock
Banded Gneiss (River Rock/Pebble)
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Metamorphic Rock
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Biotite Schist
Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]
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