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Figure 3
The ordering of the geometric crystal classes (i.e. the point-group classes) in different compilations of the space groups. The background color of the cell indicates the crystal system; the symbols of the centrosymmetric groups are in boldface. For some groups the color shade is darker to highlight their different placement [e.g. in the orthorhombic system, Schoenflies, Niggli and the 1935View full citation edition of International Tables put C2v before D2, while that order was reversed beginning with the first volume (1952View full citation) of the 2nd, or `red', series of International Tables.]

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 59| Part 3| June 2026| Pages 932-942
https://doi.org/10.1107/S1600576726002360
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