Metallicity distributions of the different substructures coming from FeII lines. The median metallicity of the distributions are shown for each substructure, followed by the mean [Fe/H] and intrinsic dispersion calculated with an MCMC assuming the metallicities follow a Gaussian distribution with a spread consisting of the individual metallicity uncertainties and an intrinsic dispersion. We also compared with Ceccarelli et al. (2024) metallicities where available. The comparison is shown as a distribution in grey or an arrow with an error bar where there is only one star. The distributions have been normalised for each sample such that integrating over metallicity will sum to 1.