wolframite

wolf·ram·ite  (wlfr-mt)

n.

Any of several red-brown to black minerals with the general formula (Fe,Mn)WO₄, which constitute a major source of tungsten.

Thesaurus

Noun

1.

wolframite - 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 atomic number 74, tungsten, W, wolfram - a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition