Hostname: page-component-cb9f654ff-9b74x Total loading time: 0 Render date: 2025-09-01T17:31:37.788Z Has data issue: false hasContentIssue false
  • English
  • Français

Otavite from Montevecchio, Sardinia, Italy

Published online by Cambridge University Press:  05 July 2018

Pierfranco Lattanzi ,
Paola Zuddas  and
Franco Frau
Pierfranco Lattanzi
Affiliation:
Dipartimento di Scienze della Terra, Università di Cagliari, Via Trentino 51, I-09127 Cagliari, Italy
Paola Zuddas
Affiliation:
Dipartimento di Scienze della Terra, Università di Cagliari, Via Trentino 51, I-09127 Cagliari, Italy
Franco Frau
Affiliation:
Dipartimento di Scienze della Terra, Università di Cagliari, Via Trentino 51, I-09127 Cagliari, Italy
Get access Rights & Permissions [Opens in a new window]

Abstract

The rare mineral otavite CdCO3 was found at the abandoned Pb-Zn mine of Montevecchio (SW Sardinia, Italy). Otavite occurs in the oxidised gossan, in association with aurichalcite. SEM imaging shows that otavite is composed of lenticular hollow structures containing aggregates of tiny rhombohedral crystals. Oxidation of primary Cd-bearing sulphides (sphalerite and greenockite) releases up to 24 ppm of Cd to drainage waters of the Montevecchio area. These waters are generally saturated with respect to otavite. Therefore, this mineral might play an important role in controlling Cd mobility in the environment.

Keywords

otaviteMontevecchio Pb-Zn depositSardiniaenvironmental geochemistryphase equilibria

Information

Type
Research Article
Information
Mineralogical Magazine , Volume 62 , Issue 3 , June 1998 , pp. 367 - 370
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.)

Article purchase

Temporarily unavailable

References

Appelo, C.A.J. and Postma, D. (1993) WATEQP - A computer program for equilibrium calculations of water analyses. Geochemistry, Groundwater and Pollution. Balkema, Rotterdam, 536 pp.Google Scholar
Bertorino, G., Caredda, A.M., Ibba, A. and Zuddas, P. (1995) Weathering of Pb-Zn mine tailings in pH buffered environment. In: WRI-8, (Kharaka, Y.K. and Chudaev, O., eds), Balkema, Rotterdam, 859–62.Google Scholar
Binotto, C., Boi, G., Cocco, E., Preite, D. and Sitta, S. (1987–1988) Minerali delle miniere di Montevecchio (Sardegna) e di altri giacimenti collegati al granito dell’Arburese. Riv. Mineral. Ital., 10, 65–79, 113–24, 177–88, 11, 1–16.Google Scholar
Caboi, R., Cidu, R., Fanfani, L. and Zuddas, P. (1996) Abandoned mine sites: implication for water quality. Fourth International Symposium on Environmental Issues and Waste Management in Energy and Mineral Production, SWEMP 96, Cagliari, Italy, October 7-11, 1996, 797–805.Google Scholar
Fanfani, L. (1995) Geochemical studies in an area contamined by abandoned mine tailings. In: WRI-8 (Kharaka, Y.K. and Chudaev, O., eds), Balkema, Rotterdam, 875–8.Google Scholar
Palache, C., Berman, H. and Frondel, C. (1951) The Dana's System of Mineralogy, 7th ed., Vol. II, Wiley & Sons, New York, 1124 pp.Google Scholar
Salomons, W. and Förstner, U. (1988) Chemistry and Biology of Solid Waste. Springer-Verlag, 305 pp.CrossRefGoogle Scholar
Stipp, S.L.S., Parks, G.A., Nordstrom, D.K. and Leckie, J.O. (1993) Solubility-product constant and thermodynamic properties for synthetic otavite, CdCO3(s), and aqueous association constants for the Cd(II)- CO2-H2O system. Geochim. Cosmochim. Acta, 57, 2699–713.CrossRefGoogle Scholar
Stumm, W. and Morgan, J.J. (1996) Aquatic Chemistry. Wiley-Interscience Publication, 1022 pp.Google Scholar
Tesoriero, A.J. and Pankow, J.F. (1996) Solid solution partitioning of Sr2+, Ba2+, and Cd2+ to calcite. Geochim. Cosmochim. Acta, 60, 1053–63.CrossRefGoogle Scholar
Vacca, O. and Mura, A. (1992) Minerali da collezione in Sardegna. Cooperativa Tipografic a Editoriale, Iglesias, 181 pp.Google Scholar