Scheelite
noun, Mineralogy.
1.
calcium tungstate, CaWO 4 , usually occurring in tetragonal crystals: an important ore of tungsten.
noun
1.
a white, brownish, or greenish mineral, usually fluorescent, consisting of calcium tungstate in tetragonal crystalline form with some tungsten often replaced by molybdenum: occurs principally in contact metamorphic rocks and quartz veins, and is an important source of tungsten and purified calcium tungstate. Formula: CaWO4
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