CI-chondrite-normalized rare earth element diagrams for (a) 15426 and (b) 74220 Only data for edges or centers of samples are shown, with crystallized data omitted. Fields show previous data reported for 15426 from Korotev (1987), Ma et al. (1981) and Steele (1992). Data for 74220 are from Hughes et al. (1989) and Chen et al. (2015). CI-chondrite normalization from McDonough & Sun (1995).