单词	wolframite
释义	wolframite /ˈwʊlfrəmʌɪt / noun [mass noun] A black or brown mineral which is the chief ore of tungsten. It consists of a tungstate of iron and manganese.It occurs most commonly in the minerals scheelite (calcium tungstate) and wolframite (iron manganese tungstate WO 4).... Minerals such as wolframite, arsenopyrite, fluorite, and quartz are well known from this mine. A greisen is a quartz - mica aggregate containing significant amounts of cassiterite, wolframite, fluorite, topaz, rutile, and tourmaline.
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