Difference between revisions of "Hemihedry"
From Online Dictionary of Crystallography
m (link) |
|||
| Line 4: | Line 4: | ||
== Definition == | == 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. | + | 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 == | == See also == | ||
Revision as of 10:06, 9 April 2007
Hémiédrie (Fr). Hemiedria (Sp). Emiedria (It). 半面像 (Ja)
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