Zobrazeno 1 - 10
of 212
pro vyhledávání: '"K. Dornberger-Schiff"'
Autor:
D. Hodgkin
Publikováno v:
Acta Crystallographica. 17:74-75
Autor:
A. J. C. Wilson
Publikováno v:
Acta Crystallographica. 14:696-696
Autor:
K. Dornberger-Schiff, H. Grell
Publikováno v:
Acta Crystallographica Section A. 38:491-498
The condition for MDO polytypes formulated in paper I [Dornberger-Schiff (1982). Acta Cryst. A38, 483- 491] is applied to OD structures containing OD layers of M > 1 kinds. Methods for ascertaining whether a certain polytype is an MDO polytype or not
Autor:
K. Dornberger-Schiff
Publikováno v:
Clays and Clay Minerals. 23:231-246
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 'regula
Autor:
S. Merlino, K. Dornberger-Schiff
Publikováno v:
Acta Crystallographica Section A. 30:168-173
The chemically very different minerals aenigmatite and sapphirine are crystallographically closely related, being ordered members of isomorphous families of OD structures consisting of equivalent layers. The symbol of the OD-groupoid family character
Publikováno v:
Crystal Research and Technology. 17:1449-1457
Experience with polytype families of layered structures and the theory of OD structures consisting of layers made it possible to elaborate generally applicable principles for a full description of polytypes by symbols. According to these principles,
Autor:
K. Dornberger-Schiff
Publikováno v:
Clays and Clay Minerals. 30:364-374
From the symmetry point of view, micas may be classified as follows: those with all three oc- tahedrally coordinated sites occupied by the same cation (homo-octahedral micas), those with only two of these sites occupied by the same cation (meso-octah
Autor:
K. Dornberger-Schiff
Publikováno v:
Kristall und Technik. 14:1027-1045
The notion of OD structures consisting of layers is explained, and visualization of its main features facilitated by a simple game: the player is asked to stack prefabricated layers periodic in 2 dimensions, which are all of the same kind or of a sma
Autor:
K. Dornberger-Schiff
Publikováno v:
Acta Crystallographica Section A. 38:483-491
The concept of MDO structures (structures of maximum degree of order) is explained in detail and defined. This concept corresponds closely to the concepts of standard, simple or regular polytypes, it seems, however, to be more adequate for complicate
Publikováno v:
Kristall und Technik. 16:557-565
A model consisting of 3 transparent sheets, moveable one relative to the other, is used to obtain pictorial representations of any of the 36 positions which one dioctahedral (mesooctahedral) kaolinite layer may occupy relative to its predecessor. In