Watermelon tourmaline — specimen 0534, photo © NMNHS

Watermelon tourmaline — specimen 0534

Origin

East Africa

Mozambique

Watermelon tourmaline — specimen 0534, locality map

Data

Weight: 1.14 ct; size: 11.57 | 3.86 | 3.45 mm; shape: octagon; colour: medium dark very strongly greenish blue; very slightly greyish; clarity: eye clean; cut: excellent; treatment: none.

Notes

Very clean specimen; design ‘Octaelongatis 4’, excellent cut by Tan Pen.

More information from ‘Classification’

Watermelon tourmaline

A variety of tourmaline (primarily elbaite) with colour zoning usually showing a pink core and green edges, like a watermelon.