Visible and near infrared spectra of CM meteorites from RELAB showing the objects showing absorption bands centered between 0.65 and 0.75 μm with SSR > 7. Data are normalized at 0.55 μm. The topmost spectrum is of the meteorite EET83389,15 measured at a grain size of <125 μm (RELAB file number c1mp42). This spectrum is anomalous and beyond the 2σ variation in the rest of the dataset, so it has been eliminated for the remainder of the study.