Point symmetry
From Online Dictionary of Crystallography
Revision as of 09:59, 17 November 2017 by BrianMcMahon (talk | contribs) (Tidied translations and corrected Spanish (U. Mueller))
Revision as of 09:59, 17 November 2017 by BrianMcMahon (talk | contribs) (Tidied translations and corrected Spanish (U. Mueller))
Symétrie ponctuelle (Fr). Punktsymmetrie (Ge). Simmetria del sito, simmetria puntuale (It). Simetría puntual (Sp).
Definition
The point symmetry of a position is its site symmetry. The point symmetry, or point group, of a lattice is the group of linear mappings (symmetry operations, isometries) that map the vector lattice L onto itself. Those geometric crystal classes to which point symmetries of lattices belong are called holohedries.
See also
- Chapter 3.2 of International Tables for Crystallography, Volume A, 6th edition