carnotite Min.
(ˈkɑːnətaɪt)
[ad. F. carnotit (Friedel & Cumenge 1899, in Compt. Rend. Acad. Sci. CXXVIII. 534), f. the name of Marie Adolphe Carnot (1839–1920), French inspector-general of mines: see -ite1.]
A yellow earthy hydrated vanadate of potassium and uranium, found in south-western Colorado, and worked as a source of vanadium, uranium, and radium. Also attrib.
| 1899 Jrnl. Chem. Soc. LXXVI. ii. 434 A new mineral containing uranium and vanadium, to which the authors give the name carnotite, is found in yellow, friable masses, mixed with very variable quantities of silica, together with malachite and chessylite, in pockets at the surface of a grit in Montrose Co., Colorado. 1920 Discovery May 143/1 The carnotite beds on the borders of Utah and Colorado. 1945 Times 8 Aug. 4/2 In 1938 the United States produced 4,290 short tons of carnotite ore. |