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The 54 hemisymmorphic space groups contain only axial combination of symmetry elements from the corresponding point groups. ... 21: C222: C 2 2 2
This category lists minerals that display the Pca2 1 (No. 29) space group symmetry of the orthorhombic crystal system. This also includes P2 1 ca and Pc2 1 b . Pages in category "Minerals in space group 29"
This category lists minerals that display the P2 1 (No. 4) space group symmetry of the monoclinic crystal system. Pages in category "Minerals in space group 4" The following 7 pages are in this category, out of 7 total.
This category lists minerals that display the P4 3 32 (No. 212) space group symmetry of the hexagonal crystal system, or the enantiomorphic P4 1 32 (No. 213), depending on the chirality. Pages in category "Minerals in space group 212 or 213"
This category lists minerals that display the P2 1 /c (No. 14) space group symmetry of the monoclinic crystal system. This also includes P2 1 /a , P2 1 /b , P2 1 /n , B2 1 /a , and B2 1 /d . Pages in category "Minerals in space group 14"
A space group is called symmorphic (or split) if there is a point such that all symmetries are the product of a symmetry fixing this point and a translation. Equivalently, a space group is symmorphic if it is a semidirect product of its point group with its translation subgroup. There are 73 symmorphic space groups, with exactly one in each ...
This category lists minerals that display the P2 1 2 1 2 1 (No. 19) space group symmetry of the orthorhombic crystal system. Pages in category "Minerals in space group 19" The following 17 pages are in this category, out of 17 total.
This category lists crystals that display the symmetry of the P3 1 21 space group (No. 152) of the trigonal crystal system, or the enantiomorphic space group P3 2 21 (No. 154). The element or compound can assume either one of these two space groups. The crystal being referred to may be just one of the possible forms of a named element or compound.