In an attempt to obtain as much data as possible about the fragmentary sword discovered in 2017 in one of the most important Dacian sites (Ocnita, Vâlcea County), but also about the way in which the environment in which it was preserved for approximatively 2,000 years has influenced its conservation status, the methods of characterization applied aim to obtain results concerning, on the one hand, the composition of the material from which the weapon was made, and as far as possible the technique used by the blacksmith craftsmen, and on the other hand, the composition of the soil in which the weapon was deposited to see the way the soil influenced the conservation state in which the weapon was found. Several analytical techniques, such as optical macroscopy (OM), X-ray fluorescence spectrometry (XRF), X-ray CT scanning, X-ray diffraction (XRD), scanning electron microscopy with energy dispersive spectroscopy (SEM) were used in order to investigate the corrosion processes that aroused and affected the analysed parts of sword fragment.