Citation: Chang, Tong-Ying; Hu, Chun-Li; Yan, Dong; Mao, Jiang-Gao (2017). (H 3 O)Ca 2 Zn 3.5 (PO 4 ) 4 and Ba 2 Cd 3 (PO 4 ) 2 (HPO 4 ) 2 : Syntheses, crystal structures and characterizations of two mixed metal phosphates. Journal of Solid State Chemistry, 251, pp. 19-25.