Archaeometric characterization of Proto-Byzantine glass workshop from the Roman amphitheatre of Catania (Sicily, Italy)

Weathering and deterioration of archeological glasses from late Roman Sicily

“…Comparison of CaO vs Al 2 O 3 values among our glasses (red triangles) and other ones coming from Sicily …”

“…In general, no compositional changes are found in the Late Roman and Early Byzantine periods in different archeological sites of Sicily because all considered glasses belonging to HIMT and Levantine type groups. Among the Sicilian glasses, only few samples from Catania are analyzed with the aim of studying the degradation typology in depth. The authors found only two types of weathered surfaces, iridescence and encrustation and from a chemical point of view, a reduction in sodium and calcium content and an increase in concentrations of aluminium, silicon, and potassium.…”

“…In general, their bulk (see Table 2) is characterized by Si 2 O ranging mainly between 60 and 70 wt %, Na 2 O from 15 to 25 wt %, CaO from 4 to 7 wt% and low magnesium and potassium content (0.5 and 1.5 wt%, respectively). In Figure 8, the Syracusan glasses are compared with other soda-lime-silica glasses coming from Sicilian archeological sites studied by Arletti et al, 38 Barbera et al, 39 and Di Bella et al 40 The relationship between CaO and Al 2 O 3 is similar except for higher Al 2 O 3 values of four samples from the catacombs and for one of Di Bella's et al glasses. 40 The higher values of alumina were also highlighted in Ref.…”

“…In Figure 8, the Syracusan glasses are compared with other soda-lime-silica glasses coming from Sicilian archeological sites studied by Arletti et al, 38 Barbera et al, 39 and Di Bella et al 40 The relationship between CaO and Al 2 O 3 is similar except for higher Al 2 O 3 values of four samples from the catacombs and for one of Di Bella's et al glasses. 40 The higher values of alumina were also highlighted in Ref. 21. In general, no compositional changes are found in the Late Roman and Early Byzantine periods in different archeological sites of Sicily because all considered glasses belonging to HIMT and Levantine type groups.…”

The Supply of Glass at Portus Ilicitanus (Alicante, Spain): A Meta‐Analysis of HIMT Glasses

“…Given the overlap of the two groups at low iron concentrations, a second criterion was applied, whereby all samples with Fe 2 O 3 < 2% were attributed to HIMTa. Data were taken from Rius et al (), Mirti et al (), Freestone et al (, ), Foy et al (), Uhlir (), Arletti et al (, ), Wolf et al (), Blin and Vanpeene (), Gómez‐Tubío et al (), Carmona et al (), Da Cruz (), Foster and Jackson (), Rehren et al (), Castelo et al (–12), Schibille (), Palomar et al (), Schiavon et al (), Schibille et al (, ), Conte et al (), Möncke et al (), Rosenow and Rehren (), Agua et al (), Di Bella et al (), Gliozzo et al (), Gliozzo et al (,b, ,b), Maltoni et al (, ), Rehren and Brüggler (), Jackson and Paynter (), Smith et al (), Ceglia et al (), De Juan Ares and Schibille (,b) and Siu et al (). [Colour figure can be viewed at wileyonlinelibrary.com]…”