Analytical and comparative studies for the territorial identification of Spanish Medieval artworks through their gypsum ground layers

This study proposes a combined Tomography / Diffraction / Fluorescence experiment on samples of three medieval Spanish artworks will investigate the subtle differences in their ground layers, containing variable forms of gypsum (CaSO2 x 2H2O). The results should confirm attribution and link to other artworks from the same period/region, thus granting unique insights into the historical and technical context.