At the excavations of Vetricella (Scarlino) and Carlappiano (Piombino) on-site pXRF analysis is used for the chemical characterization of the soil, structures and archaeological finds. In this case the main goal of this technique is his descriptive and predictive power.

In a specific area of the Vetricella site a sampling grid was applied (Fig.1). Data were collected using a pre-determinated grid frame of 1mq areal elements. Inside each areal element the concentration of the chemical species was given by the average of three single measurements. During this phase the main goal of this analyses is to support archaeologist to define the function of specific areas of the site (productive or not productive areas).