Topotaxy in the system MnO-O-H2O: groutite–ramsdellite–pyrolusite
Published online by Cambridge University Press: 14 March 2018
Summary
X-ray and thermal studies in the system MnO-O-H2O show that the transformations groutite(α-MnOOH)-ramsdellite(MnO2)-pyrolusite(MnO2) are topotactic, with the a, b, and c directions of all three corresponding. The reactions proceed by migration of manganese atoms and, where appropriate, protons. Pure single crystals of ramsdellite could not be prepared by heating groutite, even though the two structures are very similar.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 35 , Issue 270 , June 1965 , pp. 327 - 334
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1965
References
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