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niobite |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Niobite \Ni"o*bite\, n. (Min.) Same as {Columbite}. From WordNet r 1.6 [wn]: niobite n : a black mineral that is an ore of niobium and tantalum [syn: {columbite}]
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