Protein Data Bank exchange dictionary (pdbx) version 1.0521
A description of the quality and habit of the crystal. The crystal dimensions should not normally be reported here; use instead the specific items in the EXPTL_CRYSTAL category relating to size for the gross dimensions of the crystal and data items in the EXPTL_CRYSTAL_FACE category to describe the relationship between individual faces.
Mandatory item: noAlias:
_exptl_crystal_description (cif_core.dic version 2.0.1)