Category:Wolframite

Wol"fram*ite, n. Etym: [g., wolframit, wolfram; wolf wolf + rahm Cream, soot; cf. G. wolfsruss wolfram, lit., wolf's soot.] (min.)

Defn: 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.