MSCE  Vol.3 No.7 , July 2015
Preliminary Informative Results on Glass Tesserae from Vth-VIth Century AD Mosaics in Albania
This paper discusses some preliminary results regarding raw materials used in ancient glass mosaic tesserae. The studied glass tesserae were recovered during the archeological excavation of the mosaics at the Christian basilicas in Byllis, Lin and Elbasan, which according to the archeologists were built between the end of Vth and beginning of VIth century AD. In the recent years, several studies are performed on opaque coloured glass but in Albania only few studies are performed in this field. These samples are analyzed using optical microscopy and micro X-ray fluorescence. Optical microscopy is used to analyse the microstructure of the glass tesserae. The main elements and trace elements are determined qualitatively from measurements performed with micro X-ray fluorescence. The glass matrix resulted to be very heterogeneous with too many inclusions dispersed on it. Several elements which are responsible for the color and opacity of glass tesserae are determined. Comparisons are made between the same colors of glass tesserae from different archaeological sites.

Cite this paper
Vataj, E. , Civici, N. and Dilo, T. (2015) Preliminary Informative Results on Glass Tesserae from Vth-VIth Century AD Mosaics in Albania. Journal of Materials Science and Chemical Engineering, 3, 52-58. doi: 10.4236/msce.2015.37006.
[1]   Turner, W.E.S. (1985) Studies in Ancient Glass and Glass Processes. III. Chronology of Glass-Making Constituents. Journal of Society of Glass Technology, 40, 39T-52T.

[2]   Verita, M. (2000) Tecniche di fabbricazione dei materiali musivi vitrei. Indagini chimiche o mineralogiche. In: Borsook, E., Gioffredi Superbi, F. and Pagliarulo, G., Eds., Medieval Mosaics: Light, Color, Material, Florence, 47-64.

[3]   Sayre, E.V. and Smith, R.W. (1961) Compositional Categories of Ancient Glass. Science, 133, 1824-1826.

[4]   Ceka, N. and Mucaj, S. (2004) Bylisi, Historia dhe Monumentet, 33-80.

[5]   Anamali, S. (2011) Mozaiket paleokristiane te bazilikes se Linit (Pogradec), Iliria III, 329-342.

[6]   Cerova, Y., Hobdari, E. and Islami, A. (2011) Bazilika paleokristiane extra-muros ne Scampis (Elbasan); Rezultatet e germimeve 2007-2009. Candavia, 3, 105-134.

[7]   Bimson, C.R. (1977) Colour Generation and Control in Glass. Elsevier Scientific Publishing Co., Amsterdam.

[8]   Arletti, R., Quartieri, S. and Vezzalini, G. (2006) Glass Mosaic Tesserae from Pompeii: An Archeometrical Investiga- tion. Periodico di Mineralogia, 75, 25-38.

[9]   Vataj, E., Hobdari, E., Islami, A., Dilo, T., Civici, N. and Qoku, E. (2013) Rezultate paraprake te investigimit te disa teserave prej qelqi te marra ne baziliken paleokristiane te Elbasanit, Buletini i FSHN, 81-90.

[10]   Freestone, I.C., Bowman, S.G.E. and Stapleton, C.P. (2000) Composition and Origins of Byzantine and Early Mediavel Enamel Glasses, Project 6078.

[11]   Henderson, J. (1985) The Raw Materials of Early Glass Production. Oxford Journal of Archaeology, 4, 267-291.

[12]   Turner, W. (1956) Studies of Ancient Glasses and Glassmaking Processes. Part IV. The Chemical Composition of Ancient Glasses. Journal of the Society of Glass Technology, 40, 162T-186T.

[13]   Caggiani, C.M., Acquafredda, P. and Colomban, Ph. (2014) The Source of Blue Colour of Archaeological Glass and Glazes: The Raman Spectroscopy/SEM-EDS Answers. Journal of Raman Spectroscopy, 45, 1251-1259.

[14]   Santagostino Barbone, A., Gliozzo, E., D’Acapito, F., Memmi Turbanti, I., Turchiano, M. and Volpe, G. (2008) The Sectilia Panels of Faragola (Ascoli Satriano, Southern Italy); a Multi Analytical Study of the Red, Orange and Yellow Glass Slabs. Archaeometry, 50, 451-473.

[15]   Barber, D.J., Freestone, I.C. and Moulding, K.M. (2009) Ancient Copper Red Glasses; Investigation and Analysis by Microbeam Techniques. In: Shortland, A., Freestone, I. and Rehren, Th., Eds., From Mine to Microscope—Advances in the Study of Ancient Technology, Oxbow Books, Oxford, 115-127.

[16]   Brill, R.H. and Cahill, N.D. (1988) A Red Opaque Glass from Sardis and Some Thoughts on Red Opaques in General. Journal of Glass Studies, 30, 16-27.

[17]   Shugar, A.N. (2000) Byzantine Opaque Red Glass Tesserae from Beit Shean, Israel. Archaeometry, 42, 375-384.