Indicolite — specimen 0732, photo © NMNHS

Indicolite — specimen 0732

Origin

East Africa

Tanzania

Indicolite — specimen 0732, locality map

Data

Weight: 0.88 ct; size: 10.43 | 3.91 | 2.54 mm; shape: octagon; colour: medium dark very strongly bluish green; very slightly greyish; clarity: eye clean; cut: excellent; treatment: none.

Notes

Very clean specimen; design ‘Octangulum’ [crown angle changed to 21.00], excellent cut by Tan Pen.

Other specimens

More information from ‘Classification’

Indicolite

A blue colour variety of some tourmaline species, usually of elbaite. A pure blue is very rare and most indicolite is of teal or blue-green colour.