Highly oriented pyrolytic graphite samples have been implanted at elevated temperature (450 °C) with57Fe species at high fluence (2×1017cm−2) and a bombarding energy of 35 keV. Under these conditions of implantation, materials with ferromagnetic properties have been synthesized, as demonstrated by magnetization measurements using a superconducting quantum interference device magnetometer. It is further shown that the samples exhibit ferromagnetic, paramagnetic, and diamagnetic contributions to the total magnetization. The value of the measured coercive force and a comparison of scanning electron microscopy studies of the sample surface with the calculation of the saturation ferromagnetic moment suggest that fine iron particles are created on the surface. A mechanism is proposed to explain these observations. Complementary Rutherford backscattering spectroscopy and Raman measurements indicate that the lattice is not completely amorphized under these implantation conditions.