Abstract
All MDO-polytypes (i.e. regular polytypes) of trioctahedral, dioctahedral and monoctahedral 1:1 phyllosilicates are derived from their OD-character using the results of our preceding paper. The terms ‘simple polytype’, ‘standard polytype’ and ‘regular polytype’ turn out to be synonyms of the term ‘MDO-polytype’ which has the advantage of being exactly defined. The method used to obtain the MDO-polytypes is also applicable to more complicated cases.
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References
Dornberger-Schiff, K. and Ďurovič, S. (1975) OD-interpre-tation of kaolinite-type structures—I. Symmetry of kao-linite packets and their stacking possibilities: Clays and Clay Minerals 23, 219–229.
Zvyagin, B. B. (1964) Elektronografiya i strukturnaya kris-tallografiya glinistykh mineralov (Electron diffraction analysis of clay minerals): Izdat. Nauka, Moskva.
Zvyagin, B. B. (1967) Electron Diffraction Analysis of Clay Mineral’s. Plenum Press, New York.
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Dornberger-Schiff, K., Ďurovič, S. Od-Interpretation of Kaolinite-Type Structures—II: The Regular Polytypes (Mdo-Polytypes) and Their Derivation. Clays Clay Miner. 23, 231–246 (1975). https://doi.org/10.1346/CCMN.1975.0230311
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DOI: https://doi.org/10.1346/CCMN.1975.0230311