Panel (a): measured (black) and modeled (red) average spectrum of Ceres in terms of I/F (r × π). Error bars indicate uncertainties on absolute calibration. The best fit including all endmembers is discussed in De Sanctis et al. [11] with the addition of heated-lizardite (see Table 1), and MAC 87,300 (see Figure 2). In panel (b), the single scattering albedo (SSA) of each endmember scaled for their respective relative abundance: MAC 87300 (orange), NH4-montmorillonite (dark green), heated lizardite (red), amorphous carbon (blue), dolomite (cyan), antigorite (purple), magnetite (pickle green).