AM_FeFe2(PO3OH)4(H2O)4 Formula: Fe3 P4 O20 H12 Name: FeFe2(PO3OH)4(H2O)4 Unit cell: 5.152 16.629 8.749 90.0 90.8 90.0 , V=749.48 Space group: P121/N1 (14)

Vencato I , Mascarenhas Y P , Mattievich E , American Mineralogist , 71 (1986) p.222-226, The crystal structure of FeFe2(PO3OH)4(H2O)4: a new synthetic, compound of mineralogic interest