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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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