AM_Hydroxylellestadite Formula: Ca5 (Si1.26 S1.08 P.66) O12.82 F.09 Cl.07 H.82 Name: Hydroxylellestadite Unit cell: 9.496 9.496 6.92 90.0 90.0 120.0 , V=540.40 Space group: P63/M (176)

Onac B P , Effenberger H , Ettinger K , Panzaru S P , American Mineralogist , 91 (2006) p.1927-1931, Hydroxylellestadite from Cioclovina Cave (Romania): Microanalytical,, structural, and vibrational spectroscopy data, Locality: Cioclovina Cave, Sureanu Mountains, Romania