EMERALD (MINERALOGY)
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BTBERYL GROUP (MINERALOGY)
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UDC549.646.2
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Descriptor GERSMARAGD (MINERALOGIE)
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Descriptor ENGEMERALD (MINERALOGY)
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Descriptor FREEMERAUDE (MINÉRALOGIE)
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NTAQUAMARINE (MINERALOGY)
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NTGOSHENITE (MINERALOGY)
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NTHELIODOR (MINERALOGY)
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NTMORGANITE (MINERALOGY)
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NTTRAPICHE EMERALD (MINERALOGY)