Definition of coltan
: a dull black ore that consists of a mixture of columbite and tantalite and is a minor source of tantalum
Recent Examples of coltan from the Web
In central Africa, miners go into rain forests to dig for an ore called coltan that ends up in phone circuits.
The war was fueled by the region’s immense natural riches, which include gold, diamonds, tin, timber and coltan, a mineral essential to the manufacture of smartphones and other consumer electronics.
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Origin and Etymology of coltan
International Scientific Vocabulary columbo-tantalite, from columbite + -o- + tantalite
First Known Use: 1999See Words from the same year
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