Various bismuth minerals are found in the Belogorsky deposit. Many of them are rare natural minerals and mineral varieties. These are native bismuth, bismutite, cosalite, gladite(?), jonasonite, galenobismutite enriched with Ag and Cu, zavaritskite, a large group of unnamed compounds and other. A feature of the endogenous bismuth mineralization of the deposit is its localization in the products of low-medium-temperature hydrothermal transformation of early associations, especially in large carbonate (with fluorite) pockets in blocks of essentially magnetite ores, where it is closely associated with Au-Ag-Pd-Pt and Mo-W mineralization. The significant amount of Ag in the form of common Ag-Bi minerals is also associated with the bismuth mineralization of the Belogorsky deposit. A close geochemical relationship of Bi, Au, and PGEs in the processes of mineral formation at the Belogorsky deposit is also evident in the presence of common minerals of these elements, such as jonasonite and the unnamed compound Ru(Pb,Ag)2Bi4. The association of Bi and Mo-W mineralization is a characteristic feature of ores of some skarn-tungsten and skarn-molybdenum deposits containing scheelite, molybdenum and bismuthin as the main minerals. The presence of bismuth and noble-metal mineralization is most characteristic of gold and complex gold-bearing ores of hydrothermal deposits of various types. However, at the Belogorsky deposit, in contrast to the deposits of the above-mentioned types, such metals as W, Mo and Bi, as well as Au, Ag, Pd, and Pt do not have an independent practical value, being the accompanying useful components in relation to iron ores. Rocks and ores of the Belogorsky deposit are Triassic metal-bearing sediments metamorphosed and partially regenerated in the Late Cretaceous, which were accumulated in the lagoons of the islands as a result of erosion of the laterite weathering crust of ancient gabbroids. Related to this is the enrichment of ores in different metals, including Fe and Mn, and the presence of gold-silver-palladium-platinum, nickel-cobalt, and bismuth mineralization (Bi compounds with Au and PGE included), which is characteristic of some ultramafic massifs.