wolframite


wol·fram·ite

noun \ˈwl-frə-ˌmīt\

Definition of WOLFRAMITE

:  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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