Warwickite

1 definition found

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

  Warwickite \War"wick*ite\, n. (Min.)
     A dark brown or black mineral, occurring in prismatic
     crystals imbedded in limestone near Warwick, New York. It
     consists of the borate and titanate of magnesia and iron.
     [1913 Webster]