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Oriented transformation of manganite during heat treatment

Published online by Cambridge University Press:  14 March 2018

D. R. Dasgupta
D. R. Dasgupta*
Affiliation:
Geological Survey of India, 29 Chowringhee, Calcutta—16, India
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Summary

The transformation of manganite during heating has been studied by single crystal X-ray diffraction methods. It is observed that manganite transforms into pyrolusite keeping its original axial directions parallel to those of the transformed phase. Pyrolusite then transforms into Mn2O3 with its [001] ‖ [110] or [100] of Mn2O3; of Mn2O3 and [010] ‖ [001] of Mn2O3. Evidence of an intermediate product in the pyrolusite → Mn2O3 reaction has been found.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 35 , Issue 269 , March 1965 , pp. 131 - 139
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1965

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References

Bahl, (D. P.), 1963. Special volume of petrological research, Geol. Surv. India.Google Scholar
Bernal, (J. D.), 1960. Schweiz. Archiv. angew. Wiss. Techn., vol. 26, p. 69.Google Scholar
Bernal, (J. D.), Dasgupta, (D. R.), and Mackay, (A. L.), 1957. Nature, vol. 180, p. 645.Google Scholar
Bernal, (J. D.), Dasgupta, (D. R.), and Mackay, (A. L.), (1959). Clay Min. Bull., vol. 4, p. 15.Google Scholar
Buerger, (M. J.), 1936. Zeits. Krist., vol. 95, p. 163.Google Scholar
Dachs, (H.), 1963. Ibid., vol. 118, p. 303.Google Scholar
Dasgupta, (D. R.), 1961. Indian Journ. Phys., vol. 35, p. 401.Google Scholar
Faulring, (G. M.), Zwicker, (W. K.), and Forgang, (W. D.), 1960. Amer. Min., vol. 45, p. 946.Google Scholar
Feitknecht, (W.), Oswald, (H. R.), and Feitknecht-Steinmann, (V.), 1960. Helv. Chim. Acta, vol. 43, p. 1947.Google Scholar
Fermor, (L. L.), 1909. Mem. Geol. Surv. India, vol. 37, p. 83.Google Scholar
Garrido, (M. J.), 1935. Bull. Soc. fran~.;. Min., vol. 58, p. 224.Google Scholar
Mackenzie, (R. C.), editor, 1957. The Differential Thermal Investigation of Clays. London (Min. Soc.).Google Scholar
Nuffield, (E. W.), 1929. Econ. Geol., vol. 24, 10. 492.Google Scholar
Paulling, (L.) and Shapell, (M. D.), 1930. Zeits. Krist., vol. 89, p. 128.Google Scholar
Strunz, (H.), 1943. Naturwiss., vol. 31, p. 75.Google Scholar