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Description: A
collection of eleven tourmaline crystals
(16-28 mm long) with
colouring in shades of
green. Most of
the terminations are broken. Pretty, but too dark for faceting. The
photographs of the single crystals, are examples of those included.
Chemical
Composition: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
Hardness on Mohs Scale: 7
- 7.5 Specimen Code: BULK 002 US $ SOLD .. . .
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