AM_Phosphophyllite
Formula: Fe Zn2 P2 O12 H8
Name: Phosphophyllite
Unit cell: 10.378 5.084 10.553 90.0 121.14 90.0 , V=476.56
Space group: P121/C1 (14)

Hill R J , American Mineralogist , 62 (1977) p.812-817, The crystal structure of phosphophyllite