AM_Edingtonite_7 Formula: (Ba.9 Ca.1) Al2 Si3 O10.68 H3.809 Name: Edingtonite Unit cell: 9.3758 9.4097 6.5377 90.0 90.0 90.0 , V=576.78 Space group: P21212 (18)

Stahl K , Hanson J C , European Journal of Mineralogy , 10 (1998) p.221-228, An in situ study of the edingtonite dehydration process from, X-ray synchrotron powder diffraction, Sample: 643 K