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Difference between revisions of "Holohedry"

From Online Dictionary of Crystallography

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== Definition ==
 
== Definition ==
  
The [[point group]] of a crystal is called holohedry if it is identical to the point group of its lattice. In the three-dimensional space, there are seven holohedral point groups: <math> {\bar 1}, 2/m, mmm, {\bar 3}m, 4/m mm, 6/m mm, m{\bar 3}m</math>
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The [[point group]] of a crystal is called holohedry if it is identical to the point group of its lattice. In the three-dimensional space, there are seven holohedral [[geometric crystal class]]es: <math> {\bar 1}, 2/m, mmm, {\bar 3}m, 4/m mm, 6/m mm, m{\bar 3}m</math>
  
 
== See also ==
 
== See also ==

Revision as of 16:22, 24 August 2009

Holoédrie (Fr). Holedria (Sp). Oloedria (It). 完面像 (Ja)


Definition

The point group of a crystal is called holohedry if it is identical to the point group of its lattice. In the three-dimensional space, there are seven holohedral geometric crystal classes: [math] {\bar 1}, 2/m, mmm, {\bar 3}m, 4/m mm, 6/m mm, m{\bar 3}m[/math]

See also

Section 9.1 of International Tables of Crystallography, Volume A