mineral

Quartz with Tourmaline

Silicon Dioxide (SiO2) with Schorl (Complex Borosilicate)

Hardness: 7 on the Mohs scale. Color: White to milky quartz with dark gray to black tourmaline inclusions. Luster: Vitreous to greasy. Crystal Structure: Trigonal. Cleavage: None, exhibits conchoidal fracture. Specific Gravity: 2.65.

Hardness: 7 on the Mohs scale
Luster: Vitreous to greasy

Identified August 7, 2026More mineral →

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Physical properties

Formation & geological history

Formed in hydrothermal veins and pegmatites, where silica-rich fluids crystallized alongside boron-rich minerals deep within the Earth's crust over millions of years.

Uses & applications

Used for ornamental carvings, polished display specimens, lapidary arts, and metaphysical crystal collections.

Geological facts

Tourmalinated quartz is prized by collectors because the dark needles of tourmaline provide a striking contrast against the milky white quartz background, creating unique natural patterns.

Field identification & locations

Can be identified by its high hardness (scratches glass), lack of cleavage, and characteristic dark needle or patch inclusions embedded within a translucent to milky quartz host. Found worldwide in pegmatite-rich regions.

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