The formation of barite and celestite through the replacement of gypsum

P Forjanes, JM Astilleros, L Fernández-Díaz - Minerals, 2020 - mdpi.com
Barite (BaSO4) and celestite (SrSO4) are the end-members of a nearly ideal solid solution.
Most of the exploitable deposits of celestite occur associated with evaporitic sediments …