A novel pyrophosphate Na7Ni3Fe(P2O7)4 was synthesized in two distinct forms, single-crystal and powder. Single-crystal X-ray diffraction used to determine the crystal structure, powder scanning electron microscopy were examine purity morphology of elaborated This phosphate crystallizes P1¯ space group triclinic system with a = 6.3677 (2) Å, b 9.3316 (4) c 10.8478 α 65.191 (1)°, β 80.533 (1)° γ ...