Archeologia e archeometria delle perle in vetro della necropoli patavina del CUS-Piovego (VI-IV secolo a.C.). Osservazioni sulla tecnologia del vetro in Veneto nella piena Età del ferro.

At present, only a few analytical projects have been carried on Iron Age vitreous beads; in this research, typologically well defined grave goods from the Piovego cemetery have been considered as a suitable case study. The 35 vitreous materials selected for the archaeometric investigation are dated between the middle of the 6th and the end of 5th century. Forty-two micro-samples from the bodies and the decorations of the beads were sampled and analysed by SEM-EDS, EPMA and micro Raman spectroscopy, whereas non – invasive XRD was performed on the beads. The EPMA data show that all but one of the samples are LMG glasses obtained using natron as flux, although chemical composition has a large variability depending on the color and opacity/transparency of the glass. Also the texture of the samples is strongly variable. Only one sample is a HMG glass, produced using Na plant ashes as flux. The main results are here presented and compared with the few data available in the literature for coeval objects.