Fig. 3. SEM images of raw RHPLA: BA (A), ECO (B), MCYC (C) with a length of ∼2 mm. Micrometric spherical morphotypes marked with P.1 and P.2 and their magnification shown in (D) and (E). EDXS chemical composition of the points P.1, P.2, P.3 and P.4 in the spectra below.