CHARACTERIZATION AND MINERALOGICAL STUDIES OF AKIRI COPPER ORE IN AWE LGA, NASARAWA STATE, NIGERIA USING ED-XRF, XRD AND SEM-EDS. FJST [Internet]. 29 juin 2026 [cité 30 juin 2026];10(2):141-6. Disponible sur: https://lafiascijournals.org.ng/index.php/fjst/article/view/764