Major element chemistry will be utilized on mantle clinopyroxene and garnet xenocrysts to conduct geothermo- barometric analyses of mantle xenoliths uncovering the depths from which they were sourced and sampled by the Tsabong kimberlite cluster. This approach will include generating palaeo- geotherms which represent a model for the thermal structure and thickness of the lithosphere at the time of kimberlite emplacement. The study of this phenomenon also is a vital tool in diamond prospecting which can determine whether discovered kimberlites are diamondiferous or not of diamond- bearing origin. This study will determine the thermal and compositional nature of the mantle materials sampled by these kimberlites to build a fuller picture of the mantle lithosphere and its thermal properties at the time of kimberlite emplacement. Furthermore, using trace element chemistry on garnets and clinopyroxene xenocrysts will determine the chemical nature of the mantle from which they were sourced such as any metasomatic episodes, depletions, and re- fertilization patterns which has potential in unravelling other mineral phases that were present during these episodes and throughput the kimberlite emplacement process.