indicolite


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indicolite

(ˈɪndɪkəˌlaɪt) or

indigolite

n
(Minerals) a form of tourmaline ranging in colour from pale blue to blue-black
[C19: from Spanish indico indigo + -lite]
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Gem grade tourmaline also occurs at Buleclhi and Shingus, Gilgit, they said adding that Indicolite (blue tourmaline) was found in pegmatite of Gram Chashma (Chitral).
Exotic Gems; Volume 3: How to Identify, Evaluate, Select and Care for Matrix Opal, Fire Agate, Blue Chalcedony, Rubellite Indicolite, Paraiba and Other Tourmalines
The second pocket yielded attractive blue ("indicolite") crystals as well as some medium-blue crystal clusters measuring up to 15 cm.
Indicolite Tourmaline on Quartz Pederneira Mine, Minas Gerais, Brazil 4 1/4" tall ex-collection D.
Gem grade tourmaline also occurs at Buleclhi and Shingus, Gilgit , they said adding that Indicolite (blue tourmaline) was found in pegmatite of Garm Chashma (Chitral).
Altogether, 80 kg of blue "indicolite" elbaite have been produced, of which 30 kg consist of cutting-quality material.
Blue elbaite ("indicolite") is among the rarest of all the tourmaline colors, and has been prized by collectors for centuries.
These included a lovely, thick, colorzoned gemmy crystal 12 cm long in albite matrix; lustrous, gemmy pink crystals and a few gemmy blue ("indicolite") crystals as loose loners; a huge green compound crystal termination, 22 cm across, called "the wedding cake"; a flaring, opaque pink compound prism 20 cm high with a jet-black "moor's head" cap; and, as a bonus, a pale pink, part-gemmy morganite beryl crystal measuring about 15 X 20 cm.
From the big pocket we drove 120 feet northwest, following some very good signs, but netted only a meager little pocket of small blue indicolite tourmalines.
The Gusalaka mine, near Pech, Kunar, produced some well-terminated, flawless, uniformly pale blue indicolite crystals to 5 cm.