AM_Feldspar_3 Formula: Pb.5 (Si Al) O4 Name: Feldspar Unit cell: 8.428 13.054 7.174 90.0 115.32 90.0 , V=713.45 Space group: C12/M1 (12)

Benna P , Tribaudino M , Bruno E , American Mineralogist , 81 (1996) p.1337-1343, The structure of ordered and disordered lead feldspar (PbAl2Si2O8), Sample: disordered