Category:Crystals in space group 180 or 181

This category lists crystals that display the symmetry of the P6221 space group (No. 180) of the hexagonal crystal system, or the enantiomorphic space group P6421 (No. 181). 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.

Subcategories

This category has only the following subcategory.