Dust-depletion sequences in damped Lyman-α absorbers - II. The composition of cosmic dust, from low-metallicity systems to the GalaxyLars Mattsson, Annalisa De Cia, Anja C. Andersen and Patrick PetitjeanA&A, 624 (2019) A103DOI: https://doi.org/10.1051/0004-6361/201731482