International Science Community Association International Research Journal of Environmental Sciences 15 4 2026 10 22 Technical Evaluation of Gravity Separation Efficiency in Gold Ore Treatment: Evidence from the Boena Artisanal Mining Site, Burkina Faso 13 17 EN Sirojiddin Muradov 1 Karshi state technical university, Karshi, Uzbekistan Dubey Arti 1 Department of Chemistry, VIVA College Virar (W), Maharashtra, India KANSOLE and Laboratory of Geosciences and Environment (LaGE) Michelline Marie Regina 1 University Yembila Abdoulaye Toguyeni, P.O 54 Fada N' Gourma, Burkina Faso University Joseph KI-ZERBO 2 Multidisciplinary Laboratory for Engineering Science Research, Polytechnic School of Ouagadougou (EPO), 18 PO 234 Ouaga 18, Burkina Faso P.O 7021 3 University Yembila Abdoulaye Toguyeni, P.O 54 Fada N' Gourma, Burkina Faso Ouagadougou 4 Burkina Faso 5 BEIDARI Mohamed 6 KIMA Adama 7 > Research Paper 2026 7 8 2026 10 22 This article focuses on the evaluation of the efficiency of gravimetric processing of gold ore in an artisanal mining of Boena, carried out at the laboratory of Université Yembila Abdoulaye TOGUYENI (UYAT) in Fada N'Gourma, Burkina Faso. The treatment was performed using the sluice box gravimetric separation method, starting from a 3.3 kg residue from a first sluice processing run, with 15 litres of water. The equipment used includes a hammer, a sieve, a sluice box fitted with mats, gloves and a gold pan. At the end of the treatment, no native gold was found in the recovered concentrate, only iron oxide as hematite (Fe2O3) and magnetite (Fe3O4). This outcome is explained by the nature of the sample: as a post-gravimetric residue, it had already been depleted of free gold during the initial treatment. The sluice nonetheless correctly performed its heavy mineral concentration function, confirming the reliability of the process. This study highlights the limitations of double-pass sluicing on residue material and underscores the importance of prior ore characterization before processing. Copyright@ International Science Community Association