Spectra around the Mg triplet region of one star in each ED substructure and one GE star. The stars have been selected to have a similar T_eff within the range of 6150 K – 6450 K and span a range of [Fe/H], demonstrating the difference in the lines for more metal-poor stars. The GE spectrum is plotted such that the continuum is normalised to 1 and then each other spectra are plotted with an offset of 1, ordered from most metal-rich to most metal-poor.