Holohedry

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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: {\bar 1}, 2/m, mmm, {\bar 3}m, 4/m mm, 6/m mm, m{\bar 3}m

See also

Section 9.1 of International Tables of Crystallography, Volume A

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