Glaucophane

1 definition found

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

  Glaucophane \Glau"co*phane\, n. [Gr. glayko`s silvery, gray +
     fai`nesqai to appear.] (Min.)
     A mineral of a dark bluish color, related to amphibole. It is
     characteristic of certain crystalline rocks.
     [1913 Webster]