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Ogdohedry

From Online Dictionary of Crystallography

Ogdoédrie (Fr). Ogdoedria (Sp). Ogdoedria (It)


Definition

The point group of a crystal is called ogdohedry if it is a subgroup of index 8 of the point group of its lattice.

See also

Section 9.1 of International Tables of Crystallography, Volume A