COLUMBITE + NIOBITE (MINERALOGY)
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BTPENTAVALENT OXYACID SALTS (MINERALOGY)
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UDC549.752.322
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Descriptor GERCOLUMBIT + NIOBIT (MINERALOGIE)
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Descriptor ENGCOLUMBITE + NIOBITE (MINERALOGY)
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Descriptor FRECOLUMBITE + NIOBITE (MINÉRALOGIE)
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Variant GERNIOBIT (MINERALOGIE)
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Variant ENGNIOBITE (MINERALOGY)
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Variant FRENIOBITE (MINÉRALOGIE)