# Difference between revisions of "Holohedry"

### From Online Dictionary of Crystallography

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== See also == | == See also == | ||

− | + | *Section 3.2.1.1 of ''International Tables of Crystallography, Volume A'', 6<sup>th</sup> edition | |

− | Section | ||

[[Category:Fundamental crystallography]]<br> | [[Category:Fundamental crystallography]]<br> | ||

[[Category:Morphological crystallography]] | [[Category:Morphological crystallography]] |

## Revision as of 15:54, 10 April 2017

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

## 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

- Section 3.2.1.1 of
*International Tables of Crystallography, Volume A*, 6^{th}edition