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Difference between revisions of "Holohedry"

From Online Dictionary of Crystallography

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<font color="blue">Holoédrie </font>(''Fr''). <Font color="green"> Holedria </Font>(''Sp''). <Font color="black"> Oloedria </Font>(''It''). <Font color="purple"> 完面像 </Font>(''Ja'').
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<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'').
  
  

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