BERYL GROUP (MINERALOGY)
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BTMETASILICATES + METATITANATES (MINERALOGY)
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UDC549.646
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Descriptor GERBERYLL GRUPPE (MINERALOGIE)
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Descriptor ENGBERYL GROUP (MINERALOGY)
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Descriptor FREGROUPE DE BÉRYL (MINÉRALOGIE)
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Variant FREBÉRYL/GROUPE DE BÉRYL (MINÉRALOGIE)
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NTBERYL (MINERALOGY)
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NTEMERALD (MINERALOGY)