Typomorfic mineralogical and geochemical properties of yakutites

Conducted mineralogical and geochemical studies of natural diamonds XI variety - yakutite. The isotopic composition of carbon yakutite revealed significant identity, not fully coincide with any of the genetic populations of natural diamonds, including impact. The isotopic composition of nitrogen yakutite more likely to be associated with mantle, rather than crustal derivatives. As part polimineral films on the surface of the particles play a significant role yakutite minerals characteristic of deep mineral - chromium-containing spinels, baddeleyite, chromium iron, tantalum carbide and probably niobium. On a range of properties yakutite more like mantle single crystal diamonds from kimberlites and tuffizites Ural type than the Brazilian carbonado.