Niobite

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  niobite \ni"o*bite\, n. (Min.)
     Same as {Columbite}.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:



  niobite
       n : a black mineral that is an ore of niobium and tantalum [syn:
            {columbite}]