Mineralogy of Sasanian Bullae

The Sasanian Empire is one of the most magnificent dynasties in ancient Iran. Numerous archaeological and artistic works as well as written manuscripts have been remained from the Sasanian period. In the meantime, oral traditions of the period and its inspiration on Islamic era cannot be denied. The Sasanian inscribed bullae are among the most important heritages of this glorious era. This article deals with a technical analysis based on “electron probe microanalysis” to understand compounding materials of the Sasanian bullae. It also stresses on the mineralogy of the bullae’s compounds and raise a question if their manipulation follow any standard(s) or not? Evaluating such a hypothesis, the authors have selected small sample pieces of the bullae from three well-known historical sites: Takht-e Soleyman (West Azarbaijan Province), Qasr-e Abu-Nasr (Fars Province) and Teppe Kabudan (Golestan Province). To answer to main question of the paper, EMPA technique has been selected, which is one of the most accurate tests. Initially, fixed compound elements of each bullae were discovered and then an attempt was undergone to evaluate and compare the bullae compounds of the three Sasanian sites.