mineral

Milky Quartz with Tourmaline

Silicon Dioxide (SiO2) with Tourmaline inclusions

AI-generated identification · may be incorrect

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.

Identified August 1, 2026More mineral →

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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.