Agria 43. (Az Egri Múzeum Évkönyve - Annales Musei Agriensis, 2007)

Kocsonya András–Kovács Imre–Váradi Adél: Egy egri későközépkori üvegkehely újabb kémiai vizsgálata

András Kocsonya-Imre Kovács-Adél Váradi The Recent Chemical Analysis of Late Medieval Glass Goblet found in Eger At Eger Castle, in the vicinity of of the Romanesque cathedral a light blue Late Medieval glass goblet of the Ring glas type with a green glass ring came to light. A wide-ranging analysis and electron-microprobe examination on the glass has already been published. Since then we have undertaken an x-ray emission analysis of the chemical composition of the glass with the help of Particle Induced X-ray Emission (PIXE). On the basis of the earlier examinations of the material we were already aware that the object was made of potassium glass, and that the green of the ring was made using copper. The most recent results show that the blue was created by the addition of cobalt. The cobalt in all probability came from the German Erzgebirge, and our next task will be to discover the place of origin and the mining context. 496