Source : Webster's Revised Unabridged Dictionary (1913)

Smaltine \Smalt"ine\, Smaltite \Smalt"ite\, n. [See {Smalt}.]
   (Min.)
   A tin-white or gray mineral of metallic luster. It is an
   arsenide of cobalt, nickel, and iron. Called also
   {speiskobalt}.

Source : WordNet®

smaltite
     n : a gray mineral consisting of cobalt arsenide and nickel; an
         important source of cobalt and nickel