AM_Gladiusite Formula: Fe4.1 Mn.05 Mg1.69 P O16 H11.32 Name: Gladiusite Unit cell: 16.95 11.65 6.266 90.0 90.0 90.0 , V=1237.33 Space group: P121/N1 (14)

Sokolova E V , Hawthorne F C , McCammon C A , Liferovich R P , The Canadian Mineralogist , 39 (2001) p.1121-1130, The crystal structure of gladiusite, (Fe,Mg)4Fe2(PO4)(OH)11(H2O)