Hostname: page-component-848d4c4894-wzw2p Total loading time: 0 Render date: 2024-06-02T06:43:56.839Z Has data issue: false hasContentIssue false
  • English
  • Français

Evidence for hibbingite–kempite solid solution

Published online by Cambridge University Press:  05 July 2018

Bernhardt Saini-Eidukat ,
Nikolai S. Rudashevsky  and
Alexander G. Polozov
Bernhardt Saini-Eidukat
Affiliation:
Department of Geosciences, North Dakota State University, Fargo, ND, 58105-5517, USA
Nikolai S. Rudashevsky
Affiliation:
Mechanobr Technical Corporation, 21 Line 8A, St. Petersburg, 199026, Russia
Alexander G. Polozov
Affiliation:
Institute of Geochemistry, SB RAS, P.O. Box 4019, 664033 Irkutsk, Russia
Get access Rights & Permissions [Opens in a new window]

Abstract

New occurrences of hibbingite, γ-Fe2(OH)3Cl, have been found associated with platinum-group minerals in the Noril'sk Complex, and with the Korshunovskoye iron ores of the southern Siberian platform. The Norils'k grains, which are up to 0. 6 mm in diameter, are associated with the platinumgroup minerals froodite, cabriite, urvantsevite and with native silver in massive pentlandite–cubanite– chalcopyrite ore. The Korshunovskoye iron ore sample in which hibbingite was found is composed of fine-grained magnetite ore associated with halite. Hibbingite, hematite and silver grains are found in cavities in halite; the reddish-brown hibbingite grains usually occur as encrustations in the cavities. The size of hibbingite and hematite grains is up to 100 µm.

Hibbingite from the Noril'sk Complex contains a significant kempite (Mn2(OH)3Cl) component; in some cases it contains over 50 mol. % Mn. These data suggest that at least a partial solid solution series exists between hibbingite and kempite. All known occurrences of hibbingite represent paragenetically late mineral assemblages. In the case of the Korshunovskoye deposits, the occurrences are associated with highly concentrated hydrothermal brines derived from the Lower Paleozoic saline sediments of the Siberian Platform cover.

Keywords

hibbingitekempitesolid solutionNoril'sk complexKorshunovskoye iron oresplatinum-group mineral
Type
Research Article
Information
Mineralogical Magazine , Volume 62 , Issue 2 , April 1998 , pp. 251 - 255
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1998

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

Buchwald, V.F. and Koch, C.B. (1995) Hibbingite (γ-Fe2Cl(OH)3Cl), a chlorine-rich corrosion product in meteorites and ancient iron objects. Meteoritics, 30, 493.Google Scholar
Dahlberg, E.H. (1987) Drill core evaluation for platinum group mineral potential of the basal zone of the Duluth Complex. Minnesota Dept. Natural Res. Rep., 255.Google Scholar
Dahlberg, E.H. and Saini-Eidukat, B. (1991) A chlorinebearing phase in drill core of serpentinized troctolitic rocks of the Duluth Complex, Minnesota. Canad. Mineral., 29, 239–44.Google Scholar
Dunayev, V.A. (1986) Structure and origin of the ore bodies of the Korshunovo iron ore deposit. Intl. Geol. Rev., 28, 1468–79.CrossRefGoogle Scholar
Laverat, A.G., Martínez, O.G., Ruiz, J.C. and Ros, E.G. (1973) Hydroxy salts. XII. Hydroxychlorides of iron (II), manganese(II) and other heavy cations. Anales de Quimica, 69, 331–7.Google Scholar
Malinko, S.V., Lisitsyn, A.Ye., Purusova, S.P., Fitsev, B.P. and Khruleva, T.A. (1983) Korshunovskite Mg2Cl(OH)3-nH2O — a new hydrous magnesium chloride. Intl. Geol. Rev., 25, 1105–10.CrossRefGoogle Scholar
Miura, Y., Rucklidge, J.C. and Nord, G.L. Jr., (1981) The occurrence of chlorine in serpentine minerals. Contrib. Mineral. Petrol., 76, 17–23.CrossRefGoogle Scholar
Palache, C., Berman, H., and Frondel, C. (1951) Dana's System of Mineralogy, 7th edn, Vol II. Wiley, New York.Google Scholar
Polozov, A.G., Vorontsov, A.E. and Amirzhanov, A.A. (1995) The latest process of mineragenesis in iron ore deposits of the Angara-Ilim type, Siberian Platform. Proc. IGCP Proj. 336 Intl. Field Conf. and Symp., Duluth, MN, 151.Google Scholar
Post, J.E. and Buchwald, V.F. (1991) Crystal structure refinement of akagenéite. Amer. Mineral., 76, 272–7.Google Scholar
Rucklidge, J.C. and Patterson, G.C. (1977) The role of chlorine in serpentinization. Contrib. Mineral. Petrol., 65, 39–44.CrossRefGoogle Scholar
Saini-Eidukat, B., Kucha, H. and Keppler, H. (1994) Hibbingite, γ-Fe2(OH)3Cl, a new mineral from the Duluth Complex, Minnesota, with implications for the oxidation of Fe-bearing compounds and the transport of metals. Amer. Mineral., 79, 555–61.Google Scholar
Springer, G. (1989) Chlorine-bearing and other uncommon minerals in the Strathcona Deep copper zone, Sudbury District, Ontario. Canad. Mineral., 27, 311–3.Google Scholar