The study of buff color and red potteries’ structure in Shahre-sukhte site in Sistan

Potteries are considerable for reaserchers because of its stable nature. Pottery with buff color and red color is one of the most important cultural objects widely founded in Shahr-e-sokhta site. Therefore, this paper has tried to investigate some subjects such as similarities and differences in the method of production, cooking temperature, mineralogy and comparison of fuzzy structures with studying on red and buff color pottery samples from this site. Manner used in this reaserch is practical in terms of porpuse and is reaserch-laboratory in terms of method and also approach of collecting information is laboratory-library. Statical population of the study is 12 pottery shards are founded in shahre-sokhta that contains seven buff color shards and five red pottery shards.on the way to achive reaserch porpuses, laboratory and machinery instruments like petrography of thin sections and also X-Ray diffraction by powder method were used which have wide and special usage in structural studies of ancient potteries. In order to achieve the research objectives, laboratory devices and tools such as thin sections petrographic and X-ray diffraction have been used in powder diffraction methods which are widely approached in studying ancient pottery structures. The results shows the texture of these potteries are in two type, microcrystalline and coarse-crystalline, but minerals and fillers in them do not differ significantly. Moreover, the heat of klin has a crucial role in determining the color of case studies. The cases with calcite mineral were cooked in temperature below 800 ° C and calcite samples were cooked in higher temperature. generaly, by analyzing the results, we found that the samples are similar in components and structure, and they mainly differ in the composition of pulp and percentage of the abundance of the precentage minerals in pottery pulp. but it should be considerd that differences in potteries are related to method of craftsmanship and crushing pulp of the potteries by pre-date potters of Shahre-Sokhta.