OICC Press Iranian Journal of Earth Sciences 2228-785X 17 4 2025 10 30 High-pressure Experiments in Petrological Researches by Piston-cylinder Device Method 10.57647/ijes.2025.16941 EN Sofja Viktorovna Banushkina V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia Alexey Anatolyevich Kirdyashkin V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia Zoia Friedrichovna Golitsyna V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia Journal Article 2025 10 30 The article describes the method used in experimental petrological studies of rock-forming mineral solid solutions. It describes in detail the concept of initial preparation of the materials. The article presents the description of the piston-cylinder type apparatus used in our experimental studies. Such equipment is suitable for the synthesis of high-pressure phases of the silicate systems with the pressure values up to 4.0 GPa and the temperature up to 1700 °C. The article also presents the details and describes special features of our method of conducting experiments with the piston-cylinder apparatus. To synthesis the phases the obtained homogeneous glasses are used which determine the equability of the substance distribution. It is revealed that the high-pressure cells made of sodium chloride are more suitable then the water-containing and silicate-containing ones usually used in similar experiments. The analytical methods applied to the obtained data analysis are also outlined.