Definition of coltan

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  • coltan is not a valid Scrabble US word!
  • coltan is a valid Scrabble UK word with a point value of 8
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Definition of coltan

  • a valuable black mineral combining niobite and tantalite; used in cell phones and computer chips (noun)

    Synonyms

    1. columbite-tantalite

See definition of coltan in Merriam Webster