Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-27T11:34:52.829Z Has data issue: false hasContentIssue false
  • English
  • Français

X-ray diffraction studies of vivianite, metavivianite, and barićite

Published online by Cambridge University Press:  05 July 2018

T. Sameshima ,
G. S. Henderson ,
P. M. Black  and
K. A. Rodgers
T. Sameshima
Affiliation:
Department of Geology, University of Auckland, Private Bag, Auckland, New Zealand
G. S. Henderson
Affiliation:
Department of Geology, University of Auckland, Private Bag, Auckland, New Zealand
P. M. Black
Affiliation:
Department of Geology, University of Auckland, Private Bag, Auckland, New Zealand
K. A. Rodgers
Affiliation:
Department of Geology, University of Auckland, Private Bag, Auckland, New Zealand
Get access Rights & Permissions [Opens in a new window]

Abstract

Vivianite specimens from various world localities yield X-ray powder patterns of two types: one corresponds with that shown by synthetic Fe3(PO4)2 · 8H2O and is not readily distinguished from that of barićite; the second shows reflections of monoclinic vivianite and triclinic metavivianite along with reflections of a bobierrite-type phase. The triclinic phase occurs as two twin-related lattices with twin plane 110 being the structural equivalent of 010 in the monoclinic phase. The relationship of the bobierrite-type lattice to the other two has not been established. The ternary pattern is produced by some coarse-grained vivianites on natural oxidation. Finer grained vivianites oxidise to an X-ray amorphous state without passing through a triclinic intermediate.

Keywords

X-ray diffractionvivianitemetavivianitebarićite
Type
Research Article
Information
Mineralogical Magazine , Volume 49 , Issue 350 , March 1985 , pp. 81 - 85
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1985 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Barth, T. F. W. (1937) Am. Mineral. 22, 325-41.Google Scholar
Dobra, E., and Duda, R. (1976) Mineral. Slovaca, 8, 157-62.Google Scholar
Dormann, J-L., and Poullen, J-F. (1980) Bull. Minéral. 103, 633-9.Google Scholar
Dormann, J-L., Gaspérin, M., and Poullen, J-F. (1982) Ibid. 105, 147-60.Google Scholar
Fedji, P., Poullen, J-F., and Gasp6rin, M. (1980) Ibid. 103, 135-8.Google Scholar
Frazier, A. W., Lehr, J. R., and Smith, J. P. (1963) Am. Mineral. 48, 635-41.Google Scholar
Henderson, G. S., Black, P. M., Rodgers, K. A., and Rankin, P. C. (1984) New Zealand J. Geol. Geophys. 27 (in press).Google Scholar
Kleber, W., Wilde, W., and Frenzel, M. (1965) Chem. Erde, 24, 77-93.Google Scholar
Mellor, J. (1935) A comprehensive treatise on inorganic and theoretical chemistry, 14. London.Google Scholar
Minato, H., Kinoshita, K., and Okamoto, Y. (1956) Mineral. J. 1, 337-47.Google Scholar
Palache, C., Berman, H., and Frondel, C. (1951) Dana's System of Mineralogy, 2. John Wiley, New York.Google Scholar
Poullen, J-F. (1979) C.R. Aead. Sci. Paris, 289, 51-2.Google Scholar
Ritz, C., Essene, E. J., and Peacor, D. R. (1974) Am. Mineral. 59, 896-9.Google Scholar
Sturman, B. D., and Mandarino, J. A. (1976) Can. Mineral. 14, 403-6.Google Scholar
Tien, P., and Waugh, T. C. (1969) Am. Mineral. 54, 1355-62.Google Scholar
Vochten, R., Grave E., de, and Stoops, G. (1979) Neues Jahrb. Mineral. Abh. 137, 208-22.Google Scholar
Wolfe, C. W. (1940) Am. Mineral. 25, 787-809.Google Scholar
Zwann, P. C., and Kortenburg van der Sluys, G. (1971) Scripta Geol. 6, 1-7.Google Scholar