Difference between revisions of "Tetartohedry"
From Online Dictionary of Crystallography
BrianMcMahon (talk | contribs) m (Style edits to align with printed edition) |
BrianMcMahon (talk | contribs) (Tidied translations and added German (U. Mueller)) |
||
| Line 1: | Line 1: | ||
| − | <font color="blue">Tétartoédrie </font>(''Fr''). < | + | <font color="blue">Tétartoédrie</font> (''Fr''). <font color="red">Tetartoedrie</font> (''Ge''). <font color="black">Tetartoedria</font> (''It''). <font color="purple">四半面像</font>(''Ja''). <font color="green">Tetartoedría</font>(''Sp''). |
| + | |||
== Definition == | == Definition == | ||
Latest revision as of 13:59, 20 November 2017
Tétartoédrie (Fr). Tetartoedrie (Ge). Tetartoedria (It). 四半面像(Ja). Tetartoedría(Sp).
Definition
The point group of a crystal is called tetartohedry if it is a subgroup of index 4 of the point group of its lattice.
See also
- Chapter 3.2.1 of International Tables for Crystallography, Volume A, 6th edition