MIR reflectance spectra of olivine samples before and after irradiations in decimal scale a) and logarithmic scale b). The MIR spectra were measured relative to a gold mirror stardard and then scaled to the VNIR value in the overlapping region. CF: the Christiansen Feature; TF: the Transparency Feature. The numbers indicating the vibrational modes are summarized in Table 3 in Hamilton (2010).