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carnotite

American  
[kahr-nuh-tahyt] / ˈkɑr nəˌtaɪt /

noun

Mineralogy.
  1. a yellow, earthy, hydrous potassium uranium vanadate: an ore of uranium.


carnotite British  
/ ˈkɑːnəˌtaɪt /

noun

  1. a radioactive yellow mineral consisting of hydrated uranium potassium vanadate: occurs in sedimentary rocks and is a source of uranium, radium, and vanadium. Formula: K 2 (UO 2 ) 2 (VO 4 ) 2 .3H 2 O

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of carnotite

1895–1900; named after A. Carnot (died 1920), French mining official; see -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The ore in the Fergana Valley is rather like the carnotite of Colorado, a complex uranium-vanadium mineral.

From Time Magazine Archive

The U. S. with its low-grade carnotite could not compete and soon dropped out of the world picture.

From Time Magazine Archive

Eager to develop domestic sources of radium, he studied mining, learned that radium could be obtained from carnotite, developed a reduction plant at Denver to make domestic radium available.

From Time Magazine Archive

Meanwhile, Belgian prospectors had discovered veins of pitchblende in the Belgian Congo no less than 20 times richer than the U. S. carnotite.

From Time Magazine Archive

The powder is definitely carnotite, and it matches ore produced on the Colorado Plateau.

From The Blue Ghost Mystery by Harold L. (Harold Leland) Goodwin

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