(3.03-3.23 g/cm³), muscovite (2.76-3.00 g/cm³), and microcline (2.54-2.63 g/cm³). Mineralogical data for the two size fractions (+850 and -850/+500 µm) were evaluated by SEM and derived from EDS chemical analyses. The SEM micrographs reveal, in both size fractions, the presence of spodumene, quartz, fluorite, lithium mica (lepidolite), and microcline. Figures 1 and 2 show examples of the particles found in the SEM analysis. Figure 1 – Scanning electron micrographs of +850 µm size fraction with a) quartz (Si2O) with fluorite grains (CaF2) Figure 2 – Scanning electron micrographs of +850 µm size fraction with microcline (Mic), quartz (Si2O), and lithium mica (lepidolite) For the size fraction -850/+500 µm, liberated crystals of spodumene and lithium mica (Figure 3a and 3b), amphibole, and quartz were identified. Also, middling particles with Ti, Zr, Cr, and Fe intergrowth were identified (Figure 4). 144
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