| 单词 | wolframite |
| 释义 | wolframite (once / 211060 pages) n WORD FAMILY wolframite USAGE EXAMPLESThe Democratic Republic of the Congo has abundant reserves of diamonds, gold, coltan, copper, tantalite, wolframite, manganese and uranium. US News(Jun 13, 2014) The mine can produce more than 16 tons of wolframite, a rock containing tungsten, in a week, police say. Washington Post(Aug 16, 2013) Add on conflict minerals such as cassiterite, gold, wolframite, cobalt and coltan from the Congo, plus the damage from huge pits and deep tunnels. The Guardian(Oct 06, 2012) 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 Syn|Hyper iron manganese tungsten mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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