Fig. 8From: Homogeneity and heterogeneity in near-infrared FTIR spectra of Ryugu returned samplesAveraged spectrum of individual grains included in main group in the PCA plot. Relative standard deviation is also plotted with the dashed line. The spectrum is represented by absorption bands at 2.7 μm (blue), 3.05 μm (green), 3.4 μm (orange), and 3.95 μm (red)Back to article page