Gadolinite

2 definitions found

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

  Gadolinite \Gad"o*lin*ite\, n. [Named after Gadolin, a Russian
     chemist.] (Min.)
     A mineral of a nearly black color and vitreous luster, and
     consisting principally of the silicates of yttrium, cerium,
     and iron.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  gadolinite
       n : a mineral that is a source of rare earths; consists of
           silicates of iron and beryllium and cerium and yttrium
           and erbium [syn: {ytterbite}]