38 Uranium Minerals | My Site

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Frank Hawthorne

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URANIUM AND URANIUM MINERALS

Burns, P.C., Ewing, R.C. and Hawthorne, F.C. (1997) The crystal chemistry of hexavalent uranium: polyhedron geometries, bond-valence parameters and polymerization of polyhedra. Canadian Mineralogist 35, 1551-1570.

Schindler, M. and Hawthorne, F.C. (2008) The stereochemistry and chemical composition of interstitial complexes in uranyl-oxysalt minerals. Canadian Mineralogist 46, 467-501.

Schindler, M. and Hawthorne, F.C. (2004) A bond-valence approach to the uranyl-oxide hydroxy-hydrate minerals: Chemical composition and occurrence. Canadian Mineralogist 42, 1601-1627.

Schindler, M., Freund, M., Hawthorne, F.C. and Burns, P.C. (2009c) XPS spectra of uranyl-minerals and synthetic uranyl compounds I. The U 4f spectrum. Geochimica Cosmochimica Acta 73, 2471-2487.

Schindler, M., Freund, M., Hawthorne, F.C. and Burns, P.C. (2009d) XPS spectra of uranyl-minerals and synthetic uranyl compounds II. The O 1s spectrum. Geochimica Cosmochimica Acta 73, 2488-2509.

Schindler, M., Mutter, A., Hawthorne, F.C. and Putnis, A. (2004) Prediction of crystal morphology of complex uranyl-sheet minerals. I. Theory. Canadian Mineralogist 42, 1629-1649.

Schindler, M., Mutter, A., Hawthorne, F.C. and Putnis, A. (2004) Prediction of crystal morphology of complex uranyl-sheet minerals. II. Observation. Canadian Mineralogist 42, 1651-1666

Halden, N.M. and Hawthorne, F.C. (1993) High-energy PIXE: the X-ray spectrum of uranium in autunite. International Journal of PIXE 3, 121-127.

Growth and Dissolution

Hawthorne, F.C. and Schindler, M. (2014) Crystallization and Dissolution in Aqueous Solution: A Bond-valence Approach. In: Structure and Bonding. Bond Valences (Brown, I.D. & Poeppelmeier, K.R., eds.), Springer, Heidelberg, Germany, 161-190.

Schindler, M., Hawthorne, F.C., Mandaliev, P., Burns, P.C. and Maurice, P.A. (2011) An integrated study of uranyl mineral dissolution processes: etch pit formation, effects of cations in solution, and secondary precipitation. Radiochimica Acta 99, 79-94.

Schindler, M., Freund, M., Hawthorne, F.C., Burns, P.C. and Maurice, P.A. (2009) Dissolution of uranophane: an AFM, XPS, SEM and ICP study. Geochimica Cosmochimica Acta 73, 2510-2533.

Schindler, M., Hawthorne, F.C., Burns, P.C. and Maurice, P.A. (2007a) Dissolution of uranyl-oxide-hydroxy-hydrate minerals: IV. Fourmarierite and synthetic Pb2(H2O)[(UO2)10UO12 (OH)6(H2O)2]. Canadian Mineralogist 45, 963-981.

Schindler, M., Hawthorne, F.C., Halden, N.M., Burns, P.C. and Maurice, P.A. (2007b) Dissolution of uranyl-oxide-hydroxy-hydrate minerals: III. Billietite. Canadian Mineralogist 45, 945-962.

Schindler, M., Hawthorne, F.C., Burns, P.C. and Maurice, P.A. (2006) Dissolution of uranyl-oxide-hydroxy-hydrate minerals: II. Becquerelite. Canadian Mineralogist 44, 1207-1225.

Schindler, M., Mandaliev, P., Hawthorne, F.C. and Putnis, A. (2006) Dissolution of uranyl-oxide-hydroxy-hydrate minerals: I. Curite. Canadian Mineralogist 44, 415-431.

Schindler, M., Hawthorne, F.C., Putnis, C. and Putnis, A. (2004) Growth of uranyl-hydroxy-hydrate and uranyl-carbonate minerals on the (104) calcite surface. Canadian Mineralogist 42, 1683-1697.

Schindler, M., Fayek, M., Courchesne, B., Kyser, K. and Hawthorne, F.C. (2017) Uranium-bearing opals: Products of U-mobilization, diffusion and transformation processes. American Mineralogist 102, 1154-1164.

Ng, R., Alexandre, P., Kyser, K., Cloutier, J., Abdu, Y.A. and Hawthorne, F.C. (2013) Oxidation state of iron in alteration minerals associated with sandstone-hosted unconformity-related uranium deposits and apparently barren alteration systems in the Athabasca Basin, Canada: Implications for exploration. Journal of Geochemical Exploration 130, 22-43.

Schindler, M., Durocher, J., Kotzer, T.G. and Hawthorne, F.C. (2013) Uranium-bearing phases in a U-mill disposal site in Northern Canada: Products of the interaction between leachate/raffinate and tailings material. Applied Geochemistry 29, 151-161.

Schindler, M., Fayek, M. and Hawthorne, F.C. (2010) Uranium-rich opal from the Nopal I uranium deposit, Peña Blanca, Mexico: Evidence for the uptake and retardation of radionuclides. Geochimica Cosmochimica Acta 74, 187-202.

Uranium Minerals

Hawthorne, F.C., Finch, R.J. and Ewing, R.E. (2006) The crystal structure of dehydrated wyartite, Ca(CO3)[U5+(U6+O2)2O4 (OH)](H2O)3. Canadian Mineralogist 44, 1379-1388.

Belakovskiy, D.I., Pautov, L.A., Sokolova, E., Hawthorne, F.C. and Mokhov, A.V. (2006) Holfertite, a new hydroxy-hydrated uranium titanate from Starvation Canyon, Thomas Range, Utah. Mineralogical Record 37, 311-317.

Finch, R.J., Burns, P.C., Hawthorne, F.C. and Ewing, R.C. (2006) Refinement of the crystal structure of billietite, Ba[(UO2)6O4(OH)6](H2O)7. Canadian Mineralogist 44, 1197-1205.

Sokolova, E., Hawthorne, F.C., Belakovskiy, D.I. and Pautov, L.A. (2005) The OD (order-disorder) structure of holfertite, [U6+1.75 Ti4+ O7 OH] {Ca0.25 (H2O)3}, a new mineral from Searle Canyon, Thomas Range, Utah, USA. Canadian Mineralogist 43, 1545-1552.

Agakhanov, A.A., Pautov, L.A., Uvarova, Y.A., Sokolova, E.V., Hawthorne, F.C., Karpenko, V.Y., Dusmatov, V.D. and Semenov, E.I. (2004) Arapovite, (U,Th)(Ca,Na)2(K1BzGz)Si8O20@H2O, a new mineral. New Data on Minerals 39, 14-19.

Cooper, M.A. and Hawthorne, F.C. (2001) Structure topology and hydrogen bonding in marthozite, Cu2+ [(UO2)3 (SeO3)2 O2] (H2O)6, a comparison with guilleminite, Ba [(UO2)3 (SeO3)2 O2] (H2O)3. Canadian Mineralogist 39, 797-807.

Finch, R.J., Cooper, M.A., Hawthorne, F.C. and Ewing, R.C. (1999) Refinement of the crystal structure of rutherfordine. Canadian Mineralogist 37 , 929-938.

Finch, R.J., Hawthorne, F.C. and Ewing, R.C. (1998) Structural relations among schoepite, metaschoepite and dehydrated schoepite. Canadian Mineralogist 36, 831-845.

Burns, P.C., Finch, R.J., Hawthorne, F.C., Miller, M.L. and Ewing, R.C. (1997) The crystal structure of ianthinite [U24+(UO2)4O6(OH)4(H2O)4](H2O)5: A possible phase for Pu4+ incorporation during the oxidation of spent nuclear fuel. Journal of Nuclear Materials 249, 199-206.

Finch, R.J., Hawthorne, F.C., Miller, M.L. and Ewing, R.C. (1997) Distinguishing among schoepite, [(UO2)8O2(OH)12](H2O)12, and related minerals by X-ray powder-diffraction. Powder Diffraction 12, 230-238.

Finch, R.J., Cooper, M.A. and Hawthorne, F.C. (1996) The crystal structure of schoepite, [(UO2)8O2(OH)12](H2O)12. Canadian Mineralogist 34, 1071-1088.

Finch, R.J., Hawthorne, F.C. and Ewing, R.C. (1996) Schoepite and dehydrated schoepite. In: Scientific Basis for Nuclear Waste Management XVIV, W.M. Murphy and D.W. Knecht, Eds., Materials Research Society Symposium Proceedings Vol. 412, 361-368.

Finch, R.J., Hawthorne, F.C. and Ewing, R.C. (1995) Prediction of unknown uranyl oxide hydrate structure types: comparison of calculated and measured XRD powder patterns. In: Scientific Basis for Nuclear Waste Management XVIII, T. Murakami and R.C. Ewing, Eds., Materials Research Society Symposium Proceedings Vol. 353, 653B660.

Cooper, M.A. and Hawthorne, F.C. (1995) The crystal structure of guilleminite, a hydrated Ba-U-Se sheet structure. Canadian Mineralogist 33, 1103-1109.

Burns, P.C., Finch, R.J., Hawthorne, F.C., Miller, M.L. and Ewing, R.C. (1997) The crystal structure of ianthinite, a mixed-valence uranium oxide hydrate. In: Scientific Basis for Nuclear Waste Management XX, W.J. Gray and I.R. Triay, Eds., Materials Research Society Symposium Proceedings Vol. 465, 1193-1200.

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