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Coltan (short for columbite–tantalite and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted. Production and supply · Use and demand · Ethics of mining in …
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Coltan is a metallic ore from which the very similar elements niobium, also known as columbium, and tantalum are extracted. Coltan mining specifically in the Democratic Republic of Congo has been associated with human rights violations.
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Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore, from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the …
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