# Difference between revisions of "Point symmetry"

### From Online Dictionary of Crystallography

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== See also == | == See also == | ||

− | + | *Chapter 3.2 of ''International Tables of Crystallography, Volume A'', 6<sup>th</sup> edition | |

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[[Category:Fundamental crystallography]] | [[Category:Fundamental crystallography]] |

## Revision as of 16:26, 10 April 2017

Symétrie ponctuelle (*Fr*). Punktsymmetrie (*Ge*). Simetria punctual (*Sp*). Simmetria del sito, simmetria puntuale (*It*).

## 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 of Crystallography, Volume A*, 6^{th}edition