AM_Barbosalite_1 Formula: P2 Fe3 O10 H2 Name: Barbosalite Unit cell: 7.3065 7.5026 7.4105 90.0 118.49 90.0 , V=357.03 Space group: P121/N1 (14)

Redhammer G J , Tippelt G , Roth G , Lottermoser W , Amthauer G , Physics and Chemistry of Minerals , 27 (2000) p.419-429, Structure and Mossbauer spectroscopy of barbosalite Fe2+Fe3+2(PO4)2(OH)2, between 80 K and 300 K, Sample: T = 110 K