The drilling allows us to know the true underground geology through the information provided by the cores which reflect the geological formations crossed, based on those made in this kimberlite massif, several logging have been traced and allowed an in-depth study on the different kimberlite facies encountered. The different sections made it possible to make a geological correlation between the different formations crossed by taking into account the facies intersected by the survey. The vertical drilling represented on the cuts that had been carried out by MIBA for the estimation of reserves made it possible to position the additional boreholes well in order to be able to intersect the enclosing formations. These kimberlite facies were encountered, the green kimberlite facies and/or lithic kimberlite with hematite-goethite, ferruginous products; xenokimberlite facies with hematite – goethite, chalcopyrite; epiclastites with hematite, goethite, chalcopyrite and carbonate formations of the Upper Bushimayian.