The company began exporting scheelite, a tungsten ore, to the United States, in 1947.
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Along with scheelite, the wolframite series are the most important tungsten ore minerals.
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Tungsten was the old Swedish name for the mineral scheelite.
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Bergman obtained from scheelite an oxide of a new element.
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Its important ores include wolframite and scheelite.
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Associated minerals include cassiterite, scheelite, bismuth, quartz, pyrite, galena, sphalerite, and arsenopyrite.
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Cassiterite, platinum, scheelite, allanite, and native bismuth have been recovered along with gold from placer mines in the district.
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More examples
A mineral used as an ore of tungsten
Scheelite is a calcium tungstate mineral with the chemical formula CaWO4. It is an important ore of tungsten. Well-formed crystals are sought by collectors and are occasionally fashioned into gemstones when suitably free of flaws. ...