Twinning by reticular merohedry
From Online Dictionary of Crystallography
Revision as of 17:54, 17 May 2017 by BrianMcMahon (talk | contribs) (Style edits to align with printed edition)
Revision as of 17:54, 17 May 2017 by BrianMcMahon (talk | contribs) (Style edits to align with printed edition)
Maclage par mériédrie réticulaire (Fr). Geminazione per meroedria reticolare(It).
Twinning by reticular merohedry
In the presence of a sublattice whose oriented point group D(LT) differs from that of the crystal (individual) lattice D(Lind), a symmetry element belonging to D(LT) but not to D(Lind) can act as twin element.
If lattice and sublattice have the same point group but (some of) their symmetry elements are differently oriented, twinning by reticular polyholohedry can occur.
See also
- Twin lattice
- Chapter 3.3 of International Tables for Crystallography, Volume D