Аннотация:A new empirical self-consistent pairwise potential model for rare-earth monazites and xenotimes modeling has been developed. Its transferability and reliability have been demonstrated by testing the potentials toward the prediction of structural, thermodynamical and mechanical properties of all minerals under consideration. The partial ionic charge model with a Morse function is used, and it allows the modeling of different monazite and xenotime-based solid solutions, including those with plutonium impurities.