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{%type%} Definitions

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Short "hint"

n. - A black mineral that is an ore of niobium and tantalum.

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Usage examples (39)
  • There's a crucial element in the manufacture of cell phones, laptops and the like called columbite-tantalite (or coltan).
  • Tantalum is recovered from ore minerals such as columbite and tantalite.
  • His conversation contained no mention of columbite-tantalite (a.k.a. "coltan").
  • Dogo Nahawa sits amid rolling hills, surrounded by former tin and columbite mines.
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