Niobite
/ˈnaɪəˌbaɪt/
noun
1.
another name for columbite
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[nahy-oh-buh s] /naɪˈoʊ bəs/ adjective 1. Chemistry. containing trivalent , as niobous chloride, NbCl 3 . 2. of or relating to . /naɪˈəʊbəs/ adjective 1. of or containing niobium in the trivalent state Also columbous
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