“…Theoretical scattering paths were calculated using FEFF (Ankudinov et al, 1998). For copper(II), they were based on the structure of copper(II) hydroxide, Cu(OH) 2 , (Oswald et al, 1990), cornetite, Cu 3 PO 4 (OH) 3 , (Eby and Hawthorne, 1989) and libethenite, Cu 2 PO 4 OH, (Heritsch, 1940) with partial Fe-for-Cu substitution, except for the Cu-O multiple scattering paths that were calculated directly in FEFF. For lead(II), the scattering paths were based on the structure of red tetragonal lead(II) oxide, PbO, (Leciejewicz, 1961) (Kolitsch et al, 2008) with partial Fe-for-P substitution, and lead tetrapolyphosphate (Averbuch-Pouchot and Durif, 1987) with partial Fe-for-Pb substitution.…”