OptionalaLattice parameter representing the length of the 'a' axis.
OptionalalphaInteraxial angle between the 'b' and 'c' axes.
OptionalbLattice parameter representing the length of the 'b' axis.
OptionalbetaInteraxial angle between the 'a' and 'c' axes.
OptionalcLattice parameter representing the length of the 'c' axis.
OptionalgammaInteraxial angle between the 'a' and 'b' axes.
OptionalZThe number of formula units contained within the volume of the unit cell.
Parameters defining the geometry and size of a crystal's unit cell.