Wolframite

2 definitions found

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

  Wolframite \Wol"fram*ite\, n. [G., wolframit, wolfram; wolf wolf
     + rahm cream, soot; cf. G. wolfsruss wolfram, lit., wolf's
     soot.] (Min.)
     Tungstate of iron and manganese, generally of a brownish or
     grayish black color, submetallic luster, and high specific
     gravity. It occurs in cleavable masses, and also


     crystallized. Called also {wolfram}.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  wolframite
       n : a mineral consisting of iron-manganese tungstate in
           crystalline form; the principal ore of tungsten; found in
           quartz veins associated with granitic rocks [syn: {iron
           manganese tungsten}]