AM_Palermoite
Formula: Sr Li2 Al4 P4 O20 H4
Name: Palermoite
Unit cell: 11.556 15.847 7.315 90.0 90.0 90.0 , V=1339.58
Space group: IMCB (72)

Moore P B , Araki T , American Mineralogist , 60 (1975) p.460-465, Palermoite, SrLi2[Al4(OH)4(PO4)4]: Its atomic arrangement and relationship to, carminite, Pb2[Fe4(OH)4(AsO4)4]