Allanite

1 definition found

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

  Allanite \Al"lan*ite\, n. [From T. Allan, who first
     distinguished it as a species.] (min.)
     A silicate containing a large amount of cerium. It is usually
     black in color, opaque, and is related to epidote in form and
     composition.
     [1913 Webster]