Difference between revisions of "Twinning by pseudomerohedry"
From Online Dictionary of Crystallography
BrianMcMahon (talk | contribs) m (Style edits to align with printed edition) |
m (擬->偽) |
||
| Line 1: | Line 1: | ||
| − | <Font color="blue"> Maclage par pseudomériédrie </Font> (''Fr''). <Font color="green"> Macla por pseudomeriedria </Font> (''Sp''). <Font color="black"> Geminazione per pseudomeroedria</Font> (''It''). <Font color="purple"> | + | <Font color="blue"> Maclage par pseudomériédrie </Font> (''Fr''). <Font color="green"> Macla por pseudomeriedria </Font> (''Sp''). <Font color="black"> Geminazione per pseudomeroedria</Font> (''It''). <Font color="purple">擬欠面双晶</Font> (''Ja''). |
Revision as of 09:26, 5 November 2017
Maclage par pseudomériédrie (Fr). Macla por pseudomeriedria (Sp). Geminazione per pseudomeroedria (It). 擬欠面双晶 (Ja).
A lattice is said to be pseudosymmetric if at least a lattice row or/and a lattice plane approximately correspond to elements of symmetry; these elements can act as twinning operators (e.g. a monoclinic lattice with its oblique angle close to 90° is pseudo-orthorhombic and thus shows two pseudo twofold axes and two pseudo mirror planes).
See also
- Chapter 3.3 of International Tables for Crystallography, Volume D