carnotite

American  

[kahr-nuh-tahyt] / ˈkɑr nəˌtaɪt /

noun

Mineralogy.

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

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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

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Etymology

Origin of carnotite

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

Example Sentences

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

From Time Magazine Archive

Several hundred tons of carnotite or pitchblende are required to produce one ounce of radium, after a laborious, costly process.

From Time Magazine Archive

In the carnotite ore of Utah and Colorado ten years ago he discovered and refined the first U. S. radium.

From Time Magazine Archive

Sure enough, the rocks contained streaks of a low-grade uranium ore called carnotite.

From Time Magazine Archive

"The carnotite was put in and then the field was planted with corn to make it look as innocent and natural as possible, I suppose."

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