AM_Bicchulite_1 Formula: Ca2 (Si Al2) O8 H2 Name: Bicchulite Unit cell: 8.825 8.825 8.825 90.0 90.0 90.0 , V=687.30 Space group: I-43M (217)

Sahl K , Zeitschrift fur Kristallographie , 152 (1980) p.13-21, Refinement of the crystal structure of bicchulite, Ca2[Al2SiO6](OH)2, Locality: synthetic