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Tetartohedry

From Online Dictionary of Crystallography

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Tétartoédrie (Fr). Tetartoedria (Sp). Tetartoedria (It). 四半面像 (Ja)


Definition

The point group of a crystal is called tetartohedry if it is a subgroup of index 4 of the point group of its lattice.

See also

Section 9.1 of International Tables of Crystallography, Volume A