Dresden 2026 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 18: Liquid and Amorphous Materials II

MM 18.6: Talk

Tuesday, March 10, 2026, 15:15–15:30, SCH/A315

Compositional and Surface Variations in Sasanian Early Islamic Glasses from Gorgan, Ray, and Istakhr — •Farahnaz Bayat Nejad¹, Mohammadamin Emami², Rémy Chapoulie³, and Farzaneh Bayat Nejad⁴ — ¹Islamic Azad University, Central Tehran Branch, Tehran, Iran — ²Art University of Isfahan, Isfahan, Iran — ³Archéosciences Bordeaux, UMR 6034 CNRS, Université Bordeaux Montaigne, Pessac, France — ⁴Islamic Azad University, Central Tehran Branch, Tehran, Iran

This study investigates the compositional and microstructural characteristics of Sasanian*Early Islamic glasses from Gorgan, Ray, and Istakhr. Laser-Induced Breakdown Spectroscopy (LIBS), Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopy (SEM-EDX), and Hyperspectral Imaging (HSI) were used to assess elemental composition, surface morphology, and colorant phases. Distinct variations in Ca/K/Na ratios reflect differences in raw materials and production recipes across the three sites. SEM-EDX reveals heterogeneous corrosion layers and localized devitrification, especially in Istakhr samples with silica-rich alteration crusts. HSI spectra identified absorption features of Fe**, Mn, and Cu** chromophores associated with glass coloration. These results provide insight into technological choices and raw material exchange networks in Late Antique Iran, demonstrating the power of non-destructive, multi-analytical methods in archaeometric glass research.

Keywords: Archaeometry; LIBS; Hyperspectral Imaging; SEM-EDX; Ancient Glass