Formula: (K.85 Na.15) (Al Si2) O6
Name: Leucite
Unit cell: 13.53 13.53 13.53 90.0 90.0 90.0 , V=2476.81
Space group: IA-3D (230)

Peacor D R , Zeitschrift fur Kristallographie , 127 (1968) p.213-224, A high temperature single crystal diffractometer study of leucite, (K,Na)AlSi2O6, Sample: T = 635 C, Locality: Vesuvius, Italy, Note: cell parameters were not reported in the paper. A value was chosen, that reproduced the reported bond lengths and thermal ellipsoid axes.