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Blue / Green Tourmaline - NKB 002 |
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Measurements:
32
x 27 x 20 mm
Description: Gem quality blue / green tourmaline (elbaite) crystal on quartz matrix. The crystal is 20 x 2½ mm, is flawed and not terminated. Chemical Composition: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 Location: Karibib, Erongo Region, Namibia. Specimen Code: NKB 002 US $ 50
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