Hemihedry
From Online Dictionary of Crystallography
Revision as of 14:17, 21 April 2006 by GiovanniFerraris (talk | contribs)
Revision as of 14:17, 21 April 2006 by GiovanniFerraris (talk | contribs)
Hémiédrie (Fr). Hemiedria (Sp). Emiedria (It)
Definition
The point group of a crystal is called hemihedry if it is a subgroup of index 2 of the point group of its lattice.
See also
Section 9.1 of International Tables of Crystallography, Volume A