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wolframite

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noun wol·fram·ite \ˈwu̇l-frə-ˌmīt\

Definition of wolframite

  1. :  a brown to black mineral consisting of a tungstate of iron and manganese occurring especially in monoclinic crystals and used as a source of tungsten



Origin of wolframite

German Wolframit, from Wolfram


First Known Use: circa 1868


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