AM_Bicchulite Formula: Ca2 (Al2 Si) 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 , Chatterjee N D , Zeitschrift fur Kristallographie , 146 (1977) p.35-41, The crystal structure of bicchulite, Ca2[Al2SiO6](OH)2, Locality: synthetic