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Wolframite

Wolframite (Fe,Mn)WO4, is an iron manganese tungstate mineral that is the intermediate between ferberite (Fe2+ rich) and hübnerite (Mn2+ rich). Along with scheelite, the wolframite series are the most important tungsten ore minerals. Wolframite is found in quartz veins and pegmatites associated with granitic intrusives.

CharacteristicsEdit

Associated minerals include cassiterite, scheelite, bismuth, quartz, pyrite, galena, sphalerite, and arsenopyrite Wolframite was highly valued as the main source of the metal tungsten, a strong and dense material with many military uses. In WWII wolframite mines were a strategic asset, as the metal was used in munitions. German industrial tools mostly used tungsten carbide. Also, tungsten was used in specialized armor piercing ammunition. This importance has decreased with the increasing use of depleted uranium for many of these applications.

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