Definitions for wolframiteˈwʊl frəˌmaɪt, ˈvɔl-
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wolframite, iron manganese tungsten(noun)
a mineral consisting of iron and manganese tungstate in crystalline form; the principal ore of tungsten; found in quartz veins associated with granitic rocks
A mineral that consists of a tungstate of iron and manganese; (Fe,Mn)WO.
Origin: From Wolframit, from Wolfram, tungsten
tungstate of iron and manganese, generally of a brownish or grayish black color, submetallic luster, and high specific gravity. It occurs in cleavable masses, and also crystallized. Called also wolfram
Wolframite, WO4, is an iron manganese tungstate mineral that is the intermediate between ferberite and huebernite. 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. Associated minerals include cassiterite, scheelite, bismuth, quartz, pyrite, galena, sphalerite, and arsenopyrite. This mineral was historically found in Europe in Bohemia, Saxony, and Cornwall. China reportedly has the world's largest supply of tungsten ore with about 60%. Other producers are Portugal, Russia, Australia, Thailand, South Korea, Rwanda, Bolivia, the United States, and the Democratic Republic of the Congo.
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