AM_Scapolite_12 Formula: (Ca.32 Na3.44 K.24) Al3.2 Si8.8 O24.19 (Cl.94 C.05 S.01) Name: Scapolite Unit cell: 12.0538 12.0538 7.5714 90.0 90.0 90.0 , V=1100.08 Space group: I14/M1 (1)

Sokolova E , Hawthorne F C , The Canadian Mineralogist , 46 (2008) p.1527-1554, The crystal chemistry of the scapolite-group minerals. I. crystal structure and, long-range order, Locality: Pamir, Tajikistan, Note: S4