PHYSICO-CHEMICAL CHARACTERIZATION OF THE APATITE ORE OF MADAGASCAR BY THE OPTIC EMISSION SPECTROMETRY TO SOURCE PLASMA OF ARGON COUPLES BY INDUCTION (ICP-OES) - Judicaël, Ravelona Andry; Tojonirina, Andriambinintsoa Ranaivoson; Eliane, Raharimalala Laurence (International Journal of Advance Research and Innovative Ideas In Education, 2021)