The nature of dark matter remains elusive, also for its derived distribution in galaxies (Salucci 2019). One possibility is that dark matter is macroscopic, made of smaller components that can be described within the standard model (Burdin et al. 2015; Jacobs, Starkman & Lynn 2015). About 40 yr ago, it was suggested that dark matter could be made of strangelets, clusters of up, down, and strange quarks (Witten 1984) formed at the time of the QCD phase transition in the Early Universe.