wolframite
- 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
- The provinces of North and South Kivu in the eastern DRC are filled with mines of cassiterite, wolframite, coltan and gold minerals needed to manufacture everything from .
- It seemed a cinch that neither Russia nor Germany would soon receive those particular tons of copper, tin, antimony, wolframite, molybdenite.
- They had done little with the colony's extensive deposits of iron ore, tin, antimony, wolframite, manganese and zinc.