North-western Guinea is home to significant mineral resources (bauxite, par excellence), diamonds and gold, as well as a few indications of useful minerals. Significant deposits of useful minerals have now been identified, some of which are being exploited (e.g. the bauxite deposits of Boké, Fria, Boffa and Télimélé). However, a good number are still foreseeable, given the favorable geological conditions. So, with the prospect of obtaining appreciable and acceptable scientific results, the aim of this work is to study the bauxitic facies and the main geochemical parameters (Al2O3, Fe2O3, TiO2, SiO2 and power) associated with them, among which titanium appears to be the most stable parameter, with a content varying from 1.71 to 4.14% throughout the deposit. Geological work in the study area has revealed the presence of gelomorphic and gravelly bauxites, and has also brought us into contact with certain source rocks (dolerites and cuirasses). Samples processed and analyzed showed alumina content ranging from 37 to over 50%.
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