Tungsten Ores World Resources

About 20 species of tungsten minerals are known, of which wolframite [(Fe, Mn) WO₃] and scheelite (CaWO₄) have industrial value.Tungsten ore grade mined in 70s, more between 0.2 ~ 0.5% WO₃, can get containing tungsten trioxide 60 to 70 percent or higher grade tungsten concentrates after dressing. China's tungsten ore reserves account for more than half the world's total reserves, mainly in Hunan, Jiangxi, Guangdong and Fujian provinces. In 1979, the world's major tungsten producing countries (except China) of tungsten ore reserves and production in the following table: 



 

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