The dielectric permittivity (∈) and dielectric losses (tan δ) of ferrocene crystallites are measured with different frequencies in the temperature range 140-375 K. The results confirm the existence of the phase transition at 163.9 K in addition to anomalous behaviour while heating indicating the presence of a metastable structure in the temperature range 250-290 K. The d.c. electrical conductivity (a) is measured in heating-cooling cycles between 120 and 300 K. The behaviour while cooling is completely different from that while heating and the phase transition becomes less pronounced in the second cooling-heating cycle. The σ-T relationship reveals an activation energy of conduction of 0.89 eV in the high temperature range while cooling. The effect of irradiating samples of ferrocene with γ-rays in different doses on both the dielectric permittivity and the electrical conductivity is also discussed. The current density (J) is measured as a function of the applied electric field (E) at three different temperatures; below the phase transition point, at room temperature and at 345 K in order to estimate the type of conduction dominates and the effect of E upon the conductivity measurements of this material. The effect of γ-irradiation with different doses on the J-E characteristics of ferrocene is also considered