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Mineral formation from aqueous solution. Part III. The stability of aurichalcite, (Zn,Cu)5(CO3)2(OH)6, and rosasite (Cu,Zn)2(CO3)(OH)2

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Summary

The stabilities of rosasite, (Cu, Zn)2 (CO3)(OH)2, and aurichalcite, (Zn, Cu)5(CO3)2(OH)6, have been determined by solution experiments with computer calculations of aqueous species in equilibrium with the solid phases. ΔG of values for rosasite and aurichalcite have been calculated as −1100 and −2766 kJ mol−1 respectively for specific samples of the two minerals. Most of the difference between the free energies of the compounds and those of malachite, Cu2(CO3)(OH)2, and hydrozincite, Zn5(CO3)2(OH)6 arises from substitution of the minor cation in the crystal lattice. Malachite, zincian malachite and rosasite should be considered as a single isomorphous series.

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References

  1. J. L. Dambor and I. D. MacGregor,Geol. Surv. Can., Paper 74-1B, 172 (1974).

  2. S. Ghose,Acta Crystallogr., 17, 1051 (1964).

    Google Scholar 

  3. J. L. Jambor and G. Pouliot,Can. Min., 8, 385 (1965).

    Google Scholar 

  4. M. Deliens, R. Oosterbosch and T. Verbeck,Bull. Soc. Fr. Mineral. Crystallogr., 96, 371 (1973).

    Google Scholar 

  5. M. W. Pryce and J. Just,Mitt. Mag., 39, 737 (1974).

    Google Scholar 

  6. J. L. Jambor,Can. Min., 14, 574 (1976).

    Google Scholar 

  7. J. L. Jambor,Geol. Surv. Can., Paper, 76-1C, 97 (1976).

  8. M. Deliens,Bull. Soc. Fr. Mineral. Crystallogr., 98, 175 (1975).

    Google Scholar 

  9. P. Tarte and M. Deliens,Bull. Soc. Roy. Sci. Liege, 43, 96 (1974).

    Google Scholar 

  10. A. K. Alwan and P. A. Williams,Transition Met. Chem., 4, 319 (1979).

    Google Scholar 

  11. A. K. Alwan and P. A. Williams,Transition Met. Chem., 4, 102 (1979).

    Google Scholar 

  12. H. Strum,Fortsch. Mineral., 37, 87 (1959).

    Google Scholar 

  13. A. H. Truesdell and B. F. Jones,J. Res. U.S. Geol. Surv., 2, 233 (1974).

    Google Scholar 

  14. J. Kielland,J. Am. Chem. Soc., 59, 1675 (1937).

    Google Scholar 

  15. H. E. Barrier and R. V. Scheuerman,Handbook of Thermochemical Data for Compounds and Aqueous Species, Wiley, New York, 1978.

    Google Scholar 

  16. S. I. Smirnov,Geochem. Internat., 3, 512 (1964).

    Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Chemistry, University College, P. O. Box 78, CF1 1XL, Cardiff, Wales, UK

    Alwan K. Alwan, J. H. Thomas & Peter A. Williams

Authors
  1. Alwan K. Alwan
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  2. J. H. Thomas
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  3. Peter A. Williams
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Part II: A. K. Alwan and P. A. Williams,Transition Acct. Chem., 4, 319 (1979).

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Alwan, A.K., Thomas, J.H. & Williams, P.A. Mineral formation from aqueous solution. Part III. The stability of aurichalcite, (Zn,Cu)5(CO3)2(OH)6, and rosasite (Cu,Zn)2(CO3)(OH)2 . Transition Met Chem 5, 3–5 (1980). https://doi.org/10.1007/BF01396855

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  • DOI: https://doi.org/10.1007/BF01396855

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