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Archaeological study of the Kazan Kremlin in 1990th years gave varied in compositionof glazed ceramics from Kazan State strata. Over a half refers to imported ceramics. Another part consists of fragments of glazed pottery of two types: red clay pottery with blue glaze and pottery with green and brown glaze. Similar dishes were found at other sites of the Volga-Kama region. Comparative analysis of the elemental composition of pottery with Crimea, glaze with Bulgar sepaja and ceramic fragments from the excavations o...

A lot of spherical cones were found at excavations in Bilyar and Bulgar - capitals of the Volga Bulgaria of 10-14th centuries. The interdisciplinary research of spherical coneswas carried out on 13 fragments from Bilyar and Bulgar settlements. Subjects were analyzed by the following methods: X-ray diffraction (XRD), optical microscopy and petrographic (OMPA), differential thermal-magnetic (DTMA), emission spectral analysis (ESA) and differential thermal analysis (DTA). XRD and OMPA demonstrated the similarity of m...