Many are familiar with pink tourmaline, but the stones can also be blue, bi-color, colorless, chrome, or green. One prized formation is the watermelon tourmaline, which is generally round and has green, white, and red layers, resembling a cut watermelon. Some stones are cut to display their multi-colors. Emerald cuts of tourmaline displaying chrome, clear and green toneogether are particularly desirable.

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