Spectrum MIR average reflectance spectra of Ryugu fragment C0002-FC028 : upper face. Spectrum MIR average reflectance spectra of Ryugu fragment C0002-FC027 : upper face. Spectrum MIR average reflectance spectra of Ryugu fragment C0002-FC027 : lower face - part S1. Spectrum MIR average reflectance spectra of Ryugu fragment C0002-FC027 : lower face - part S2. Spectrum MIR average reflectance spectra of Ryugu fragment C0002-FC027 : region with ICH2/CH3 = 1.58. Spectrum MIR average reflectance spectra of Ryugu fragment C0002-FC027 : region with ICH2/CH3 = 1.28.