Band I center vs. BAR from Gaffey et al. (1993) for NEOs whose spectra exhibit absorption bands centered at ∼1 and 2 μm due to the presence of olivine and pyroxene. The polygonal region corresponds to the S(IV) subtype associated with ordinary chondrites (OC). The horizontal lines represent the approximate boundaries for ordinary chondrites found by Sanchez et al. (2020). The rectangular zone overlapping the S(IV) subtype represents the spectral zone for acapulcoite–lodranite clan meteorites found by Lucas et al. (2019). The rectangular zone (BA) includes the pyroxene-dominated basaltic achondrite assemblages (Gaffey et al. 1993). The dashed curve indicates the location of the olivine–orthopyroxene mixing line (Cloutis et al. 1986).