gemstone
Watermelon Tourmaline
Elbaite (Tourmaline Group), Na(Al,Li)3Al6(Si6O18)(BO3)3(OH)4
AI-generated identification · may be incorrectHardness of 7 to 7.5 on the Mohs scale with a vitreous luster. Features distinct zones of pink core surrounded by a green outer rim.
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Physical properties
Hardness of 7 to 7.5 on the Mohs scale with a vitreous luster. Features distinct zones of pink core surrounded by a green outer rim.
Formation & geological history
Forms in pegmatites through the hydrothermal crystallization of boron-rich mineral solutions over millions of years.
Uses & applications
Prized in high-end jewelry and coveted by mineral collectors worldwide.
Geological facts
The unique color zoning is caused by changing chemical conditions during crystal growth, specifically shifts in manganese and iron.
Field identification & locations
Identified by its unmistakable concentric color banding of pink and green. Primarily sourced from Brazil, Madagascar, and Afghanistan.
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