Blende

blende
    n 1: an ore that is the chief source of zinc; consists largely
         of zinc sulfide in crystalline form [syn: {zinc blende},
         {blende}, {sphalerite}]
    

Sphalerite \Sphal"er*ite\, n. [Gr. ??? slippery, uncertain. See
   {Blende}.] (Min.)
   Zinc sulphide; -- called also {blende}, {black-jack}, {false
   galena}, etc. See {Blende}
   (a) .
       [1913 Webster]
    

Blende \Blende\, n. [G., fr. blenden to blind, dazzle, deceive,
   fr. blind blind. So called either in allusion to its dazzling
   luster; or (Dana) because, though often resembling galena, it
   yields no lead. Cf. {Sphalerite}.] (Min.)
   (a) A mineral, called also {sphalerite}, and by miners {mock
       lead}, {false galena}, and {black-jack}. It is a zinc
       sulphide, but often contains some iron. Its color is
       usually yellow, brown, or black, and its luster resinous.
   (b) A general term for some minerals, chiefly metallic
       sulphides which have a somewhat brilliant but nonmetallic
       luster.
       [1913 Webster]