mineral
Milky Quartz with Tourmaline
Silicon Dioxide (SiO2) with Tourmaline inclusions
Hardness of 7 on the Mohs scale, milky white to greyish color with dark or black tourmaline patches, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, milky white to greyish color with dark or black tourmaline patches, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed in hydrothermal veins and pegmatites, where hot, silica-rich fluids cool and crystallize over millions of years.
Uses & applications
Used in mineral collecting, lapidary arts, decorative items, and occasionally holistic or metaphysical practices.
Geological facts
Milky quartz is the most common variety of crystalline quartz found on Earth. The milky appearance is caused by microscopic fluid inclusions trapped during crystal growth.
Field identification & locations
Easily identified by its hardness (scratches glass), lack of cleavage, and conchoidal fracture. Found worldwide in nearly all geological environments.
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