Moissanite in Rocks of the Bobruisk Ledge of the Belarusian Crystalline Massif of the East European Craton

Abstract

A large range of minerals, native, intermetallic, amorphous compounds containing K, Na, Fe, Mn, Ca, Ba, Sr, Cu, Pb, Co, Ni, Sn, Zn, Al, Ce, Nd, La, Pr, Sm, Y, Yb, Nb, Hf, W, Mo, Zr, Cr, V, Ag, Ti, Si, has been found in the Bobruisk buried ledge of the Belarusian crystalline massif in the western part of the East European craton. As, P, Bi, O, H, F, Cl, S, Se, C, B, N F. Among them there is moissanite. It forms xenomorphic and subidiomorphic separations up to 1.5 mm in size and is represented by a hexagonal polytype modification 6H. Inclusions inherent in meteorites were found in one of its grains – sinoite (Si2N2O), xifengite (Si5Fe3) and awaruite (Ni3Fe). Moissanite, the native, intermetallic, amorphous compounds associated with it, are developed in the form of scattered, poor, multi-grained inclusions in the rocks of three structural-material complexes of the centuries. This indicates the superimposed nature of mineralization. The whole set of crystalline and amorphous secretions observed with moissanite is proposed to be designated as Bobruiskites. Mineral formation, with a high degree of probability, is due to the impact interaction of the meteoroid with rocks of the East European craton.