AM_Feldspar_6 Formula: Pb.5 (Al Si) O4 Name: Feldspar Unit cell: 8.395 13.081 14.343 90.0 115.27 90.0 , V=1424.35 Space group: I12/C1 (15)

Tribaudino M , Benna P , Bruno E , American Mineralogist , 83 (1998) p.159-166, Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)