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 ele

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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.

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Size: 3333px × 2181px
Photo credit: © WIM VAN CAPPELLEN/REPORTERS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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