mineral

Pink Tourmaline (Rubellite)

Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)

Hardness: 7-7.5 (Mohs scale), Color: Pink to reddish-pink/red, Luster: Vitreous, Crystal structure: Trigonal/Hexagonal with striated prismatic crystals, Cleavage: Indistinct, Specific Gravity: 3.0-3.26.

Hardness: 7-7

Identified June 21, 2026More mineral →

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Physical properties

Formation & geological history

Formed in granitic pegmatites and metamorphic rocks through hydrothermal processes where boron-rich fluids interact with aluminous rocks. Many major deposits date from the Precambrian to late Mesozoic.

Uses & applications

High-value gemstone for jewelry, piezoelectric components in high-pressure gauges, and highly sought-after mineral specimens for collectors.

Geological facts

Tourmaline is pyroelectric and piezoelectric, meaning it can generate an electrical charge when heated or compressed. Rubellite is the name given to the deepest, most saturated pink or red varieties.

Field identification & locations

Identify by its characteristic vertical striations along the length of the prismatic crystals and its lack of distinct cleavage. Common locations include Brazil, Afghanistan, Madagascar, and the USA (California/Maine).

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Mineral/Rock

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Metamorphic Rock

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mineral