Obsidian samples from the Tokaj Mountains (Hungary) and from the neighbouring Zemplin Hills (Slovakia) were analysed by instrumental
and epithermal neutron activation analysis for obtaining a “fingerprint” for discrimination of potential natural sources of
raw material that would permit tracing the origin of archaeological obsidian artefacts. These techniques fully discriminate
the Zemplin Hills sources (Carpathian I, eastern Slovakia) and the Tokaj Mountain sources (Carpathian II, north-eastern Hungary)
as well as these Central European sources from those already studied of the Mediterranean basin and adjacent regions.