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Authigenic Illite and Organic Matter: The Principal Hosts of Vanadium in the Mecca Quarry Shale at Velpen, Indiana
Black Shale Illite Mecca Quarry Organic Matter Vanadium
2011/12/6
Abstract: The Mecca Quarry Shale Member from Velpen, Indiana contains abundant vanadium which occurs in solid solution within illite-rich illite-smectite (I-S) having an average content of 1.65 wt. % ...
Phosphovanadylite: A new vanadium phosphate mineral with a zeolite-type structure
Phosphovanadylite vanadium phosphate mineral zeolite-type structure
2012/4/1
Phosphovanadylite, whose simplified formula is (Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]·12H2O, is a new vanadium phosphate zeolite mineral found in the Phosphoria Formation at Monsanto’s Enoch Valley Mine, So...
Cation ordering in lead-molybdenum-vanadium oxychlorides
Cation lead-molybdenum-vanadium oxychlorides
2012/4/9
The crystal chemistry and structure ofthe layered lead oxychloride parkinsonite, ideally Pb7Mo09C12, have been reevaluated in the light of TEM observations of natural and syn-thetic samples and the st...
The Composition and Origin of Vanadium-Rich Clay Minerals in Colorado Plateau Jurassic Sandstones
Chlorite Diagenegis Illite Microprobe Roseoelite Sandstone SEM Vanadium
2011/12/29
The composition and origin of vanadium-bearing clay minerals in the Jurassic (Morrison and Entrada Formations) sandstones of the Colorado Plateau are reassessed using microanalyses (microprobe and sca...
The Chemical Form of Vanadium (IV) in Kaolinite
Electron paramagnetic resonance Isomorphic substitution Kaolinite Vanadium
2011/12/30
A combined application of electron paramagnetic resonance (EPR) and Fourier-transform infrared (FTIR) spectroscopies with thermal methods was used to determine the chemical form of V(IV) in a Georgia ...
Vanadium Chlorite from a Sandstone-Hosted Vanadium-Uranium Deposit, Henry Basin, Utah
Chlorite Chlorite/smectite Corrensite Diagenesis Tosudite Uranium Vanadium X-ray powder diffraction
2012/1/12
An unusual vanadium chlorite precipitated during the formation of a vanadium-uranium ore deposit in the Henry Basin, southeastern Utah. The ore deposit formed by reduction and precipitation of U and V...
Vanadium-Titanium-Bearing Mixed-Layered Clay from Potash Sulphur Springs, Arkansas
Mixed-layer Titanium Vanadium
2012/2/10
A unique vanadium-titanium-bearing mixed-layered clay is currently being mined as an ore of vanadium at Potash Sulphur Springs, AR. The clay contains 80% expandable portion and has both a 14.22 and 18...