Difference between revisions of "Point symmetry"

From Online Dictionary of Crystallography

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<Font color="blue"> Symétrie ponctuelle </Font> (''Fr''). <Font color="red"> Punktsymmetrie </Font> (''Ge''). <Font color="green"> Simetria punctual </Font> (''Sp''). <Font color="black"> Simmetria del sito, simmetria puntuale </Font> (''It'').
<font color="blue">Symétrie ponctuelle</font> (''Fr''). <font color="red">Punktsymmetrie</font> (''Ge''). <font color="black">Simmetria del sito, simmetria puntuale</font> (''It''). <font color="green">Simetría puntual</font> (''Sp'').
== Definition ==
== Definition ==

Latest revision as of 09:59, 17 November 2017

Symétrie ponctuelle (Fr). Punktsymmetrie (Ge). Simmetria del sito, simmetria puntuale (It). Simetría puntual (Sp).


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