Carnotite - Wikipedia
Carnotite is a potassium uranium vanadate radioactive mineral with chemical formula K 2 (U O 2) 2 (VO 4) 2 ·3H 2 O. The water content can vary and small amounts of calcium , barium , magnesium , iron , and sodium are often present.
Carnotite Mineral Data
Named after the French chemist, M. A. Carnot (1839-1920). Comments: Bright yellow, fluorescent crystals of carnotite on sandstone. Location: Anderson Mine, Yavapai County, USA. Scale: Size Not Given. Yellow, Golden yellow, Greenish yellow. Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Carnotite K2(UO2)2(V2O8) • 1−3H2O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic. Point Group: 2/m. Rarely in crystals, with a diamond-shaped outline, to 2 mm, flattened on {001}; typically in fine aggregates or powdery; disseminated, compact massive. Twinning: On {001} as both twin and composition plane.
Carnotite Mineral Information photos and Facts, Carnotite …
Composition, Structure and Associated Minerals: Carnotite is a secondary mineral resulting from the solution and deposition of various uranium containing minerals. It is the most important uranium ore in the USA.
CARNOTITE
Carnotite is a radioactive, hydrous potassium uranyl vanadate mineral, K2(UO2)2(VO4)2·3H2O. It is the principal uranium ore mineral in America, but has also been mined as a vanadium ore mineral. The water component of carnotite varies with atmospheric humidity.
Crystal Chemistry of Carnotite in Abandoned Mine Wastes
The crystal chemistry of carnotite (prototype formula: K 2 (UO 2) 2 (VO 4) 2 ·3H 2 O) occurring in mine wastes collected from Northeastern Arizona was investigated by integrating spectroscopy, electron microscopy, and x-ray diffraction analyses. Raman spectroscopy confirms that the uranyl vanadate phase present in the mine waste is carnotite ...
Vanadium mineral resources - ScienceDirect
2021年1月1日 · Pure carnotite has the composition K 2 [VO 2] 2 [VO 4] 2 ·3H 2 O and contains 42%–46% uranium and 11.3% vanadium. It has a monodiagonal structure that appears as tiny crystals, slices, or plates and is usually a powder block that is yellow or yellowish green with a …
Carnotite - chemeurope.com
Carnotite is a potassium uranium vanadate mineral with chemical formula: K 2 (UO 2) 2 (VO 4) 2 ·3H 2 O. The water content can vary and small amounts of calcium, barium, magnesium, iron, and sodium are often present.
Carnotite: Mineral information, data and localities. - mindat.org
Named in 1899 by Charles Friedel and Édouard Cumenge in honor of Marie-Adolphe Carnot [January 27, 1839 Paris, France - June 20, 1920], French mining engineer and chemist, professor at École des Mines and, later Chief Engineer of Mines and Inspector General of Mines, becoming Dean of the Ecole Nationale des Mines in 1901-1907, when he retired.
Carnotite
An unusually rich specimen of Carnotite crystals up to 1 mm on a bed of blue Chrysocolla. Carnotite is a rare mineral at Mashamba and the specimens where recovered in the mid 1980’s. As the Mashamba mine is flooded and most probably exhausted, no specimens will perhaps ever reach the market again. Crystallized carnotite is rare from any ...