Francoisite-(Ce), a new mineral species from La Creusaz uranium deposit (Valais, Switzerland) and from Radium Ridge (Flinders Ranges, South Australia): Description and genesis
| dc.contributor.author | Meisser, N. | |
| dc.contributor.author | Brugger, J. | |
| dc.contributor.author | Ansermet, S. | |
| dc.contributor.author | Thelin, P. | |
| dc.contributor.author | Bussy, F. | |
| dc.date.issued | 2010 | |
| dc.description.abstract | The new mineral françoisite-(Ce), (Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]•6H2O is the Ce-analog of françoisite-(Nd). It has been discovered simultaneously at the La Creusaz uranium deposit near Les Marécottes in Valais, Switzerland, and at the Number 2 uranium Workings, Radium Ridge near Mt. Painter, Arkaroola area, Northern Flinders Ranges in South Australia. Françoisite-(Ce) is a uranylbearing supergene mineral that results from the alteration under oxidative conditions of REE- and U4+- bearing hypogene minerals: allanite-(Ce), monazite-(Ce), ±uraninite at Les Marécottes; monazite-(Ce), ishikawaite-samarskite, and an unknown primary U-mineral at Radium Ridge. The REE composition of françoisite-(Ce) results from a short aqueous transport of REE leached out of primary minerals [most likely monazite-(Ce) at Radium Ridge and allanite-(Ce) at La Creusaz], with fractionation among REE resulting mainly from aqueous transport, with only limited Ce loss due to oxidation to Ce4+ during transport. | |
| dc.description.statementofresponsibility | Nicolas Meisser, Joël Brugger, Stefan Ansermet, Philippe Thélin, and François Bussy | |
| dc.identifier.citation | American Mineralogist: an international journal of earth and planetary materials, 2010; 95(10):1527-1532 | |
| dc.identifier.doi | 10.2138/am.2010.3413 | |
| dc.identifier.issn | 0003-004X | |
| dc.identifier.issn | 1945-3027 | |
| dc.identifier.uri | http://hdl.handle.net/2440/62249 | |
| dc.language.iso | en | |
| dc.publisher | Mineralogical Soc Amer | |
| dc.rights | © 2010 Mineralogical Society of America | |
| dc.source.uri | https://doi.org/10.2138/am.2010.3413 | |
| dc.subject | Françoisite-(Ce) | |
| dc.subject | new mineral | |
| dc.subject | rare earth elements | |
| dc.subject | supergene | |
| dc.title | Francoisite-(Ce), a new mineral species from La Creusaz uranium deposit (Valais, Switzerland) and from Radium Ridge (Flinders Ranges, South Australia): Description and genesis | |
| dc.type | Journal article | |
| pubs.publication-status | Published |