wolframite Meaning, Definition & Usage

  1. noun a mineral consisting of iron and manganese tungstate in crystalline form; the principal ore of tungsten; found in quartz veins associated with granitic rocks
    iron manganese tungsten.

WordNet

Wol"fram*ite noun
Etymology
G., wolframit, wolfram; wolf wolf + rahm cream, soot; cf. G. wolfsruss wolfram, lit., wolf's soot.
Definitions
  1. (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.

Webster 1913