The research sector of the Leningrad Mining Institute, during the period from June 1, 1934 to June 1, 1935, studied the iron ores of the Khalilovskoye and Akkermanovskoye deposits under an agreement with Khalilkombinatstroy. One of the tasks was the mineralogical study of ore formations, the result of which is presented in this work. During the work, a section of the ore strata was established and a gradual change in the section from lower to upper horizons was established. The mineralogical composition of the ores and the ratio of individual components were determined. The method of thermal analysis was applied, the heating and dehydration curves of the isolated ore components were determined. The X-ray analysis method was also used. Thermal analysis was carried out in the laboratory.
