Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution: A single-crystal X-ray diffraction study

American Mineralogist

Volumn 90, Issue 8-9, 2005, Pages 1291-1299

  Tarantino, Serena C ^a   Zema, Michele ^a  

^a UNIVERSITY OF PAVIA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

BINARY ALLOYS; BOND LENGTH; GEOMETRY; NIOBIUM COMPOUNDS; SINGLE CRYSTALS; SOLID SOLUTIONS; X RAY DIFFRACTION;

CATION SUBSTITUTIONS; DISTORTION PARAMETERS; NONLINEAR BEHAVIOR; SINGLE CRYSTAL X-RAY DIFFRACTION; SINGLE-CRYSTAL X-RAY DIFFRACTION STUDIES; STRUCTURAL PARAMETER; STRUCTURAL VARIATIONS; UNIT CELL PARAMETERS;

POSITIVE IONS;

CATION; COLUMBITE; CRYSTAL STRUCTURE; ION EXCHANGE; SOLID SOLUTION; X-RAY DIFFRACTION;

EID: 26844581941     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am.2005.1641     Document Type: Article

References (26)

1. Augsburger, M.S., Pedregosa, J.C., Sosa, G.M., and Mercader, R.C. (1999) Mössbauer assessment of cation disorder in columbite-tantalite minerals. Journal of Solid State Chemistry, 143, 219-223.
2. Betteridge, P.W., Carruthers, J.R., Cooper, R.I., Prout, K., and Watkin, D.J. (2003) CRYSTALS version 12: software for guided crystal structure analysis. Journal of Applied Crystallography, 36, 1487.
3. Blessing, R.H. (1995) An empirical correction for absorption anisotropy. Acta Crystallographica, A51, 33-38.
4. Blessing, R.H., Coppens, P., and Becker, P. (1974) Computer analysis of stepscanned X-ray data. Journal of Applied Crystallography, 7,488-492.
5. Cannillo, E., Germani, G., and Mazzi, F. (1983) New crystallographic software for Philips PW 1100 single crystal diffractomeker. CNR Centro di Studio per la Cristallografia, Internal Report 2.
6. Carruthers, J.R. and Watkin, D.J. (1979) Chebychev weighting. Acta Crystallographica, A35, 698-699.
7. Černý, P. and Turnock, A.C. (1971) Niobium-tantalum minerals from granitic pegmatites at Greer Lake, southeastern Manitoba. Canadian Mineralogist, 10, 755-772.
8. Černý, P., Goad, B.E., Hawthorne, F.C., and Chapman, R. (1986) Fractionation trends of the Nb- and Ta-bearing oxide minerals in the Greer Lake pegmatitic granite and its pegmatite aureole, southwestern Manitoba. American Mineralogist, 71, 501-517.
9. Donovan, J.J. and Rivers, M.L. (1990) PRSUPR-A PC based automation and analysis software package for wavelength-dispersive electron-beam microanalysis. Microbeam Analysis, 66-68.
10. Ercit, T.S., Wise, M.A., Černý, P., (1995) Compositional and structural systematics of the columbite group. American Mineralogist, 80, 613-619.
11. Giese, R.F. Jr. (1975) Electrostatic energy of columbite/ixiolite. Nature, 256, 31-32.
12. Grice, J.D., Ferguson, R.B., and Hawthorne, F.C. (1976) The crystal structure of tantalite, ixiolite and wodginite from Bernic Lake, Manitoba. I. Tantalite and ixiolite. Canadian Mineralogist, 14, 550-560.
13. Ibers, J.A. and Hamilton, W.C. (1974) International Tables for X-ray Crystallography, 4., p. 99-101. Kynoch Press, Birmingham, U.K.
14. Komkov, A.I. (1970) Relationship between the X-ray constants of columbites and composition. Døklady Akademie Nauk SSSR, 195, 117-119.
15. 0 transition metals. Journal of Solid State Chemistry, 115, 395-406.
16. Larson, A.C. (1970) The inclusion of secondary extinction in least-squares refinement of crystal structures. In F.R. Ahmed, S.R. Hall, and C.P. Huber, Eds., Crystallographic Computing, 291-294. Munsksgaard, Copenhagen.
17. Lehman, M.S. and Larsen, F.K. (1974) A method for location of the peaks in stepscan measured Bragg reflections. Acta Crystallographica, A30, 580-584.
18. Nickel, E.H., Rowland, J.F., and McAdam, R.C. (1963) Ixiolite - A columbite substructure. American Mineralogist, 48, 961-979.
19. North, A.C.T., Phillips, D.C., and Mathews, F.S. (1968) A semi-empirical method of absorption correction. Acta Crystallographica, A24, 351-359.
20. 4 units in crystals. Zeitschrift für Kristallographie, 175, 43-59.
21. Robinson, K., Gibbs, G.V., and Ribbe, P.H. (1971) Quadratic elongation, a quantitative measure of distortion in co-ordination polyhedra. Science, 172, 567-570.
22. Shannon, R.D. (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallographica, A32, 751-767.
23. Turnock, A.C. (1966) Synthetic wodginite, tapiolite and tantalite. Canadian Mineralogist, 8, 461-470.
24. Weitzel, H. (1976) Kristallstrukturverfeinerung von Wolframiten und Columbiten. Zeitschrift für Kristallographie, 144, 238-258.
25. Wenger, M., Armbruster, T., and Geiger, C.A. (1991) Cation distribution in partially ordered columbite from the Kings Mountain pegmatite, North Carolina. American Mineralogist, 76, 1897-1904.
26. Wise, M.A., Turnock, A.C., and Černý, P. (1985) Improved unit-cell dimensions for ordered columbite-tantalite end members. Neues Jahrbuch Für Mineralogie-Abhandlungen, 8, 372-378.