scheelite
Use Scheelite in a sentence
laɪt, ˈʃi- noun Mineralogy.
calcium tungstate, CaWO 4 , usually occurring in tetragonal crystals: an important ore of tungsten.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To scheelite
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World English Dictionary
scheelite (ˈʃiːlaɪt) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 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 | |
| [C19: from German Scheelit, named after Karl Wilhelm Scheele (1742--86), Swedish chemist] | |
Collins English Dictionary - Complete & Unabridged 10th Edition
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Scheelite
is always a great word to know.
So is quincunx. Does it mean:
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
Encyclopedia Britannica
Encyclopedia
scheelite
calcium tungstate mineral, CaWO4, that is an important ore of tungsten. It acquired commercial value in the 20th century when tungsten became used in alloy steels and electric-light filaments. The mineral is named in honour of the Swedish chemist Carl Wilhelm Scheele, who obtained tungstic acid from it in 1781. Scheelite commonly occurs as compact or granular masses in contact metasomatic deposits, high-temperature veins, and granite pegmatites. In the United States it has been mined extensively in North Carolina, California, and Nevada. It also occurs in Cornwall and Cumberland in England, and in Bolivia, New South Wales, New Zealand, Siberia, Switzerland, and France.
Learn more about scheelite with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Two kinds of tungsten-bearing mineral rocks, called wolframite and scheelite, are mined commercially.
However the company was credited with the discovery of scheelite, a tungsten deposit of commercial importance.
Scheelite was hand picked with the use of ultra-violet lights.
There is thus no scheelite recovery process or pyrolusite concentration technique per se.
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