From Online Dictionary of Crystallography
Revision as of 06:40, 7 May 2006 by AndreAuthier
Symétrie ponctuelle (Fr). Punktsymmetrie, Lagesymmetrie (Ge). Simetria punctual (Sp).
The site-symmetry group of a point is the finite group formed by the set of all symmetry operations of the space group of the crystal that leave that point invariant. It is isomorphic to a (proper or improper) subgroup of the point group to which the space group under consideration belongs. In general, the origin is a point of highest site symmetry.
Sections 2.2.12 and 8.3.2 of International Tables of Crystallography, Volume A