HyperDic: columbite-tantalite

English > 1 sense of the word columbite-tantalite:
NOUNsubstancecolumbite-tantalite, coltana valuable black mineral combining niobite and tantalite
English > columbite-tantalite: 1 sense > noun 1, substance
MeaningA valuable black mineral combining niobite and tantalite; used in cell phones and computer chips.
Synonymcoltan
BroadermineralSolid homogeneous inorganic substances occurring in nature having a definite chemical composition
Spanishcoltan, columbita-tantalita
Catalancoltan, columbita-tantalita

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