AM_Kastningite Formula: Mn Al2 P2 O18 H18 Name: Kastningite Unit cell: 10.205 10.504 7.01 90.38 110.1 71.82 , V=666.16 Space group: P-1 (2)

Adiwidjaja G , Friese K , Klaska K H , Schluter J , Zeitschrift fur Kristallographie , 214 (1999) p.465-468, The crystal structure of kastningite (Mn,Fe,Mg)(H2O)4[Al2(OH)2(H2O)2(PO4)2]*2H2O -, a new hydroxyl aquated orthophosphate hydrate mineral, Locality: Waidhaus, Bavaria, Germany, Note: changed sign of Oh1(y)