Protogenetic and syngenetic inclusions of olivine in diamonds from kimberlites of Yakutia according to Raman and IR-spectroscopy

The results of optical-spectroscopic studies of olivine inclusions in diamonds from kimberlite pipes «Zapolyarnaya», «Komsomolskaya-Magnitnaya», «Botuobinskaya», «Yubileynaya», «Komsomolskaya», «Aikhal» and «Mir» of the Yakutsk diamondiferous province are presented to establish signs of syngenetic and protogenetic growth in relation to the host mineral. Diamonds with inclusions of olivine were represented by crystals of type I according to the classification of Yu. L. Orlov. According to Raman spectroscopy data residual pressure in diamonds are determined. The criteria for the syngeneity of olivines have been determined based on Raman spectroscopy and IR spectroscopy of diamonds.