Neptunium incorporation in sodium-substituted metaschoepite

American Mineralogist

Volumn 92, Issue 4, 2007, Pages 662-669

  Klingensmith, Amanda L ^a   Deely, Kathryn M ^a   Kinman, William S ^a   Kelly, Virginia ^a   Burns, Peter C ^a,b  

^a University of Notre Dame   (United States)

^b ARGONNE NATIONAL LABORATORY   (United States)

Author keywords

Crystal structure; Geologic repository; Metaschoepite; Neptunium; Nuclear waste; Uranium; Uranyl

Indexed keywords

APPROXIMATION ALGORITHMS; CRYSTAL STRUCTURE; GEOMETRY; HYDRATES; HYDRATION; INDUCTIVELY COUPLED PLASMA; LASER ABLATION; MASS SPECTROMETRY; NEPTUNIUM; NUCLEAR FUELS; OXIDE MINERALS; RADIOACTIVE WASTES; SODIUM; URANIUM; URANIUM DEPOSITS; URANIUM DIOXIDE;

APPROXIMATE FORMULAS; EQUATORIAL VERTICES; GEOLOGIC REPOSITORY; INDUCTIVELY COUPLED PLASMA MASS SPECTROSCOPIES; METASCHOEPITE; OXIDIZING ENVIRONMENTS; SPENT NUCLEAR FUELS; URANYL;

SODIUM METALLOGRAPHY;

ABLATION; CRYSTAL STRUCTURE; INDUCTIVELY COUPLED PLASMA METHOD; NEPTUNIUM; RADIOACTIVE WASTE; URANIUM;

EID: 34247491724     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am.2007.2350     Document Type: Article

References (26)

1. 7. Canadian Mineralogist, 36, 1061-1067.
2. 6+ minerals and inorganic compounds: Insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist, 43, 1839-1894.
3. 2. Canadian Mineralogist, 40, 1579-1586.
4. Burns, P.C. and Klingensmith, A.L. (2006) Uranium mineralogy and its impact on neptunium mobility under oxidizing conditions. Elements, 2, 351-356.
5. 6+ minerals and inorganic phases: a comparison and hierarchy of structures. Canadian Mineralogist, 34, 845-880.
6. 6+ phases formed during the oxidation of spent nuclear fuel. Journal of Nuclear Materials, 245, 1-9.
7. Burns, P.C., Ewing, R.C., and Hawthorne, F.C. (1997b) The crystal chemistry of hexavalent uranium: Polyhedral geometries, bond-valence parameters, and polymerization of polyhedra. Canadian Mineralogist, 35, 1551-1570.
8. Burns, P.C., Deely, K.M., and Skanthakumar, S. (2004) Neptunium incorporation into uranyl compounds that form as alteration products of spent nuclear fuel: Implications for geologic repository performance. Radiochimica Acta, 92, 151-159.
9. Christ, C.L. and Clark, J.R. (1960) X-ray crystallography and crystal chemistry of gowerite. American Mineralogist, 45, 230-235.
10. Finch, R.J. and Ewing, R.C. (1992) The corrosion of uraninite under oxidizing conditions. Journal of Nuclear Materials, 190, 133-156.
11. 12. Canadian Mineralogist, 34, 1071-1088.
12. Finch, R.J., Hawthorne, F.C., and Ewing, R.C. (1998) Structural relations among schoepite, metaschoepite and "dehydrated schoepite." Canadian Mineralogist, 36, 831-845.
13. 2 fuel in vapor and dripping groundwater at 90°C. In D.J. Wronkiewicz and J.H. Lee, Eds., Scientific Basis for Nuclear Waste Management XXII. Materials Research Society Symposium Proceedings, 556, 431-438.
14. Finn, P.A., Hoh, J.C., Wolf, S.F., Slater, S.A., and Bates, J.K. (1996) The release of uranium, plutonium, cesium, strontium, technetium and iodine from spent fuel under unsaturated conditions. Radiochimica acta, 74, 65-71.
15. Frondel, C. (1958) Systematic mineralogy of uranium and thorium. U.S. Geological Survey Bulletin, 1064.
16. Kubatko, K.-A., Helean, K.B., Navrotsky, A., and Burns, P.C. (2006) Thermodynamics of uranyl minerals: Enthalpies of formation of uranyl oxide hydrates. American Mineralogist, 91, 685-666.
17. Li, Y. and Burns, P.C. (2001) The structures of two sodium uranyl compounds relevant to nuclear waste disposal. Journal of Nuclear Materials, 299, 219-226.
18. 2O. Bull. Minéral., 108, 659-665.
19. Schindler, M. and Hawthorne, F.C. (2004) A bond-valence approach to the uranyloxide hydroxy-hydrate minerals. Canadian Mineralogist, 42, 1601-1628.
20. Schindler, M., Mutter, A., Hawthorne, F.C., and Putnis, A. (2004a) Prediction of crystal morphology of complex uranyl-sheet minerals. I. Theory. Canadian Mineralogist, 42, 1629-1650.
21. Schindler, M., Mutter, A., Hawthorne, F.C., and Putnis, A. (2004b) Prediction of crystal morphology of complex uranyl-sheet minerals. I. Observations. Canadian Mineralogist, 42, 1651-1666.
22. Schoep, A. and Stradiot, S. (1947) Crystals of paraschoepite. American Mineralogist, 32, 513-517
23. Skanthakumar, S., Gorman-Lewis, D., Locock, A., Chiang, M.-H., Jensen, M.P., Burns, P.C., Fein, J., Jonah, C.D., Attenkofer, K., and Soderholm, L. (2004) Changing Np redox speciation in the synchrotron beam. Material Research. Society Proceedings, 802, 151-156.
24. 2O. Acta Crystallographica, B56, 577-583.
25. 2 at 90°C. Journal of Nuclear Materials, 190, 107-127.
26. 2 at 90°C: implications for the corrosion of spent nuclear fuel. Journal of Nuclear Materials, 238, 78-95.