Staurolite

1 definition found

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

  Staurolite \Stau"ro*lite\ (st[add]"r[-o]*l[imac]t), n. [Gr.
     stayro`s a cross + -lite.] (Min.)
     A mineral of a brown to black color occurring in prismatic
     crystals, often twinned so as to form groups resembling a
     cross. It is a silicate of alumina and iron, and is generally
     found imbedded in mica schist. Called also {granatite}, and


     {grenatite}.
     [1913 Webster]