iron manganese tungsten, n.
a mineral consisting of iron and manganese tungstate in crystalline form; the principal ore of tungsten; found in quartz veins associated with granitic rocks
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iron manganese tungsten wolframite
Word
a mineral consisting of iron and manganese tungstate in crystalline form; the principal ore of tungsten; found in quartz veins associated with granitic rocks
<noun.substance>
iron manganese tungsten wolframite