Difference between revisions of "Holohedry"
From Online Dictionary of Crystallography
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| − | <font color="blue"> | + | <font color="blue">Holoédrie</font> (''Fr''). <font color="red">Holoedrie</font> (''Ge''). <font color="black">Oloedria</font>(''It''). <font color="purple">完面像</font>(''Ja''). <font color="green">Holoedría</font> (''Sp''). |
== Definition == | == Definition == | ||
| − | The point group of a crystal is called | + | The [[point group]] of a crystal is called '''holohedral''' if it is identical to the point group of its [[lattice]]. The corresponding [[geometric crystal class]] is called a '''holohedry'''. In the three-dimensional space, there are seven holohedries: <math> {\bar 1}, 2/m, mmm, {\bar 3}m, 4/m mm, 6/m mm, m{\bar 3}m</math>. |
== See also == | == See also == | ||
| − | + | *Chapter 3.2.1.1 of ''International Tables for Crystallography, Volume A'', 6th edition | |
| − | |||
[[Category:Fundamental crystallography]] | [[Category:Fundamental crystallography]] | ||
| + | [[Category:Morphological crystallography]] | ||
Latest revision as of 09:45, 14 November 2017
Holoédrie (Fr). Holoedrie (Ge). Oloedria(It). 完面像(Ja). Holoedría (Sp).
Definition
The point group of a crystal is called holohedral if it is identical to the point group of its lattice. The corresponding geometric crystal class is called a holohedry. In the three-dimensional space, there are seven holohedries: [math] {\bar 1}, 2/m, mmm, {\bar 3}m, 4/m mm, 6/m mm, m{\bar 3}m[/math].
See also
- Chapter 3.2.1.1 of International Tables for Crystallography, Volume A, 6th edition