The synthesis of Mg doped Li2Fe1-xMgxSiO4 (x = 0, 0.10 and 0.15) via solid-state reaction is reported.The product was characterized by Mössbauer spectroscopy (MS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), magnetic measurements and scanning electron microscopy (SEM).The structures of the reaction products were confirmed to be the monoclinic structure P21/n, but impurities were detected in them.In the undoped sample small amounts of lithium iron oxide or lithiated magnetite was obtained, whereas a magnetic phase was found in samples with more than 10 % (mole fraction) of Mg doping.