AM_Anapaite_1 Formula: Ca2 Fe P2 O12 H8 Name: Anapaite Unit cell: 6.447 6.816 5.898 101.64 104.24 70.76 , V=235.11 Space group: P-1 (2)

Catti M , Ferraris G , Ivaldi G , Bulletin de Mineralogie , 102 (1979) p.314-8, Refinement of the crystal structure of anapaite, Ca2Fe(PO4)2*4H2O:, hydrogen bonding and relationships with the bihydrated phase