Fülöp Éva Mária - László János (szerk.): Komárom-Esztergom Megyei Múzeumok közleményei 18. (Tata, 2012)
Fórizs István et al.: A brigetiói üveggyártó műhely néhány jellemző üvegleletének műszeres analitikai vizsgálata
Fórizs István-Dévai Kata-Tóth Mária-Nagy Géza-May Zoltán JACKSON 2005 Jackson, C. M.: Making colourless glass in the Roman Period. Archaeometry 47/4 (2005) 763-780. LAHLIL et al. 2010 Lahlil, S.-Biron, I.-Cotte, M.Susini, J.: New insight on the in situ crystallization of calcium antimonate opacified glass during the Roman period. Applied Physics A10 (2010) 683-692. REHREN 2000 Rehren, Th.: Rationales in old world base glass compositions. JAS 27/12 (2000) 1225-1234. SHORTLAND 2002 Shortland, A. J.: The use and origin of antimonate colorants in early Egyptian glass. Archeometry 44/4 (2002) 517-530. SHORTLAND-SCHACHNER-FREESTONETITE 2006 Shortland, A.-Schachner, L.Freestone, I.-Tite, M.: Natron as a flux in the early vitreous materials industry: sources, beginnings and reasons for decline. JAS 33/4 (2006) 521-530. TURNER-ROOKSBY1961 Turner, W. E. S.-Rooksby, H. R: Further historical studies based on X-ray diffraction methods of the reagents employed in making opal and opaque qlasses. JRGZM 8 (1961) 1-6. VELDE-GENDRON 1980 Velde, B.-Gendron, C.: Chemical composition of some Gallo-Roman glass fragments from Central Western France. Archaeometry 22/2 (1980) 183-187. WEDEPOHL 2000 Wedepohl, K. H.: The change in composition of medieval glass types occurring in excavated fragments from Germany. Annales AIHV 14 (1998) 253-257. WEDEPOHL-BAUMANN 2000 Wedepohl, K. H.Baumann, A.: The use of marine Molluskan shells for Roman glass and local raw glass production in the Eifel Area (Western Germany). Naturwissenschaften 87 (2000) 129-132. ARCHAEOMETRIC STUDY OF CHARACTERISTIC ASSEMBLAGES OF THE GLASS WORKSHOP IN BRIGETIO ISTVÁNFÓRIZS-KATA DÉVAI-MÁRIA TÓTH- GÉZA NAGY-ZOLTÁN MAY The glass was produced by the same recipe all over the Roman Empire and its chemical composition varied in a narrow range. There is no consensus whether the base glass was produced in few centres and then distributed for further processing, or base glass was produced in many glass-making workshops keeping the recipe strictly. This paper is the first to report about chemical composition of glass objects unearthed from Roman time glass-making workshops in Pannonia, contributing to the above mentioned dispute. One of the 5 studied transparent glass objects found in a glass-making workshop in Brigetio (now Komárom-Szőny in Hungary) is potash glass, which was probably made in the early modern era and mixed accidentally to the Roman objects. The other 4 transparent and translucent glass objects are of typical Roman base glass in composition. The base fragment of a very high quality bowl does not contain deliberately added manganese, while all the other transparent fragments are decolourised by manganese. This high quality glass bowl was probably made in another workshop in the Roman Empire or in Pannonia as the style of the object indicates it as well. The opaque white and opaque yellow glasses were opacified by calcium-antimonate and leadantimonate respectively according to the common practice in the Roman Empire. Translated by István Fórizs 114
