Glass material of Roman and Byzantine mosaics from Butrint

Three Roman-Byzantine mosaics at Butrint having glass tesserae as well as stone tesserae are considered in this paper: the wall mosaic of the Nympheum in the so-called “Gymnasium” (2nd-3rd century AD), the pavement of the apse of Room 24 in the Triconch Complex (3-4th century AD) and the Baptistery (6th century AD). The aim is to study firstly the use and distribution of the glass in the pavement, and secondly the supply routes of this material, by integrating an analytic and an archaeological approach.