| 1. | Iron Fe, tantalum Ta and niobium Nb are common impurities.
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| 2. | Niobium and niobium carbide dissolves in steel at very high temperatures.
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| 3. | Niobium and niobium carbide dissolves in steel at very high temperatures.
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| 4. | In addition to tourism, the city has a niobium mine.
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| 5. | Ellsworthite is heavily abundant in uranium, niobium and titanium oxides.
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| 6. | CBMM's niobium products are sold to over 50 countries.
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| 7. | This confusion arose from the minimal observed differences between tantalum and niobium.
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| 8. | The name of the element was officially adopted as niobium in 1949.
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| 9. | A typical human contains 21 parts per billion of niobium.
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| 10. | A layer of niobium carbide can be created by chemical vapor deposition.
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