Coltan ore mining. This ore,also known as columbite-tantalite,is a source of the elements niobium and tantalum. Both elements are used widely in electronic equipment. Photographed in Butembo,Democratic Republic of the Congo | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Van Cappellen, Wim / Reporters |
Bildgröße: | 3333 px × 2181 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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