 | Meisser, N., Brugger, J., Ansermet, S., Thelin, P., Bussy, F. (2010) Francoisite-(Ce), a new mineral species from La Creusaz uranium deposit (Valais, Switzerland) and from Radium Ridge (Flinders Ranges, South Australia): Description and genesis. American Mineralogist, 95 (10) 1527-1532 doi:10.2138/am.2010.3413 | Journal (article/letter/editorial) | | Mineralogist, Volume 95, pages 1527–1532, 2010 Françoisite-(Ce), a new mineral species from La Creusaz uranium...mineral françoisite-(Ce), (Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6H2O is the Ce-analog of françoisite-(Nd). It has...Northern Flinders Ranges in South Australia. Françoisite-(Ce) is a uranylbearing supergene mineral that...U-mineral at Radium Ridge. The REE composition of françoisite-(Ce) results from a short aqueous transport of...oxidation to Ce4+ during transport. Keywords: Françoisite-(Ce), new mineral, rare earth elements, supergene |  | Deditius, A. P., Utsunomiya, S., Wall, M. A., Pointeau, V., Ewing, R. C. (2009) Crystal chemistry and radiation-induced amorphization of P-coffinite from the natural fission reactor at Bangombe, Gabon. American Mineralogist, 94 (5) 827-837 doi:10.2138/am.2009.3114 | Journal (article/letter/editorial) | | P-coffinite from the natural fission reactor at Bangombé, Gabon Artur P. DeDitius,1,* sAtoshi utsunomiyA,2...1 Véronique PointeAu,3 AnD roDney C. ewing1 1 Department of Geological Sciences, University of Michigan...Michigan, Ann Arbor, Michigan 48109-1005, U.S.A. Department of Chemistry, Kyushu University, Ropponmatsu, 4-2-1...P)O4·H2O, from the natural nuclear reactor at Bangombé, Gabon (depth 12.25 m), has been examined as an important...maps reveal a homogeneous distribution of P, Si, Nd, and U in P-coffinite-(i). Charge-balance calculations |  | Hidaka, Hiroshi, Janeczek, Janusz, Skomurski, Frances N., Ewing, Rodney C., Gauthier-Lafaye, François (2005) Geochemical fixation of rare earth elements into secondary minerals in sandstones beneath a natural fission reactor at Bangombé, Gabon. Geochimica et Cosmochimica Acta, 69 (3) 685-694 doi:10.1016/j.gca.2004.07.019 | Journal (article/letter/editorial) | | sandstones beneath a natural fission reactor at Bangombé, Gabon HIROSHI HIDAKA,1,2,* JANUSZ JANECZEK,3 FRANCES...RODNEY C. EWING,4 and FRANÇOIS GAUTHIER-LAFAYE5 1 Department of Earth and Planetary Systems Science, Hiroshima...University, Higashi-Hiroshima 739-8526, Japan 3 Department of Earth Sciences, University of Silesia, ul... Bedzinska 60, PL-41-200 Sosnowiec, Poland 4 Department of Geological Sciences, University of Michigan...REE-bearing secondary minerals, such as coffinite, françoisite, uraniferous goethite, and uraninite found in |  | | Journal (article/letter/editorial) | | 2011 Synthesis and characterization of françoisite-(Nd): Nd[(UO2)3O(OH)(PO4)2]·6H2O Christopher r. Armstrong...nAsh,1 peter r. griffiths,2 And sue B. CLArK1 Department of Chemistry, Washington State University, Pullman...Pullman, Washington 99164, U.S.A. 2 Department of Chemistry, University of Idaho, Moscow, Idaho 83844...synthesis and characterization data for françoisite-(Nd), Nd[(UO 2)3O(OH) (PO4)2]·6H2O are presented...The IR spectra of protiated and deuterated françoisite-(Nd) appear to confirm a coordinated hydroxyl group |  | | Journal (article/letter/editorial) | | Deditius ⁎, Satoshi Utsunomiya 1, Rodney C. Ewing Department of Geological Sciences, University of Michigan...[apfu] and 28% loss of Ca [apfu], while Y + La + Ce + Nd [apfu] is enriched 5%. Uranium and REEs were incorporated...Deditius). 1 Current address. Kyushu University, Department of Chemistry, Ropponmatsu, 4-2-1, Chuou-ku, Fukuoka-shi...bassetite calciouranoite deliensite francevillite françoisite-(Nd) haiweite jáchymovite (Na,K)-boltwoodite Mg-zippeite...composition of coffinite is from the U-deposits in Oklo, Gabon (e.g., Janeczek, 1999; Jensen and Ewing, 2001; Bros |  | | Journal (article/letter/editorial) | | recrystallization and Pb loss in the Oklo and Bangombé natural fission reactors, Gabon LENA Z. EVINS,1,* KELD A. JENSEN...Museum of Natural History, Stockholm, Sweden Department of Geological Sciences, University of Michigan...and Bangombé natural fossil fission reactors formed ca. 2 Ga ago in the Franceville basin, Gabon. The...from two reactor zones, RZ16 at Oklo and RZB at Bangombé, were studied to clarify the chronology and effect...loss from uraninite occurred at both Oklo and Bangombé during regional extension and the intrusion of |  | René, Miloš, Dolníček, Zdeněk, Sejkora, Jiří, Škácha, Pavel, Šrein, Vladimír (2019) Uraninite, Coffinite and Ningyoite from Vein-Type Uranium Deposits of the Bohemian Massif (Central European Variscan Belt) Minerals, 9 (2) 123 doi:10.3390/min9020123 | Journal (article/letter/editorial) | | Czech Republic, 182 09 Prague, Czech Republic Department of Mineralogy and Petrology, National Museum...(Mn Kα ), Na—albite (Na Kα ), Nb—Nb (Nb Lα ), Nd—NdPO4 (Nd Lβ ), Ni—Ni (Ni Kα ), P—apatite (P Kα ), Pb—vanadinite...coffinites occurred in a natural fission reactor at Bangombé, Gabon (up to 8.9 wt % P2 O5 ) [58] and in the Khianga...P and Cavaried in the from coffinite from Bangombé (Gabon) solid recordedbetween in coffinites fromand...shear-zone hydrothermal fission reactor at Bangombé, Gabon (up to 8.9Rožná) wt % P[10]. 2O5) [58] and |
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