epidote

1 definition found

epidote - Collaborative International Dictionary of English v.0.48 :

  Epidote \Ep"i*dote\, n. [Gr. ? to give besides; ? over + ? to
     give: cf. F. ['e]pidote. So named from the enlargement of the
     base of the primary, in some of the secondary forms.] (Min.)
     A mineral, commonly of a yellowish green (pistachio) color,
     occurring granular, massive, columnar, and in monoclinic
     crystals. It is a silicate of alumina, lime, and oxide of
     iron, or manganese.
     [1913 Webster]
  
     Note: The Epidote group includes ordinary epidote, zoisite or
           lime epidote, piedmontite or manganese epidote,
           allanite or cerium epidote.
           [1913 Webster]