Willemite

1 definition found

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

  Willemite \Wil"lem*ite\, n. [From Willem I., king of the
     Netherlands.] (Min.)
     A silicate of zinc, usually occurring massive and of a
     greenish yellow color, also in reddish crystals (troostite)
     containing manganese.
     [1913 Webster]