Category:Crystals in space group 152 or 154

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.