Difference between revisions of "Holohedry"
From Online Dictionary of Crystallography
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| − | <font color="blue">Holédrie </font>(''Fr''). <Font color="green"> Holedria </Font>(''Sp''). <Font color="black"> Oloedria </Font>(''It'') | + | <font color="blue">Holédrie </font>(''Fr''). <Font color="green"> Holedria </Font>(''Sp''). <Font color="black"> Oloedria </Font>(''It''). <Font color="purple"> 完面像 </Font>(''Ja'') |
Revision as of 18:51, 2 March 2007
Holédrie (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 point groups: [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