“…The storage conditions and aging times (from 0 to 100 years) of the residues are detailed in Table 1 and Figure 2. The initial lateritic bauxite ore (L-B) sample was supplied by Alteo company, a producer of alumina at the Gardanne site which, at that time, used lateritic bauxite ores imported from Guinea. No bauxite ore of karstic origin representative of the studied karstic BR samples was used in the present study because either the plant concerned had closed down or the supply had been switched to lateritic bauxite ores, as was the case in Gardanne between the 1970s and 1990s (Arnaud & Guillon, 1989).…”