The invention relates to the production of materials which can be used in lubricating compositions for treating friction assemblies and also for restoring the friction surfaces of mechanism and machine parts.The composition is produced from the products of dehydration of natural and/or synthesized hydrates and/or mixtures thereof at an inherent water removal temperature and dehydration product stabilization temperature of 300-1200° C.The composition contains oxides from the series MgO and/or SiO2 and/or Al2O3 and/or CaO and/or Fe2O3 and/or K2O and/or Na2O and is a garnet-shaped conglomerate consisting of a nanograin and an amorphous binding phase.The size of the conglomerate is in a range of 100-100000 nm and the size of the nanograin is in a range of 2-2000 nm.The claimed method includes a step for stabilizing the dehydration product at a temperature of 900-1200° C. for a period of 1-3 hours, which makes it possible to form a stable conglomerate structure.