The Role of Barite in the PostMining Stabilization of
Barite is ubiquitous and known to incorporate 226Ra through the formation of a solidsolution. In U mining mill tailings, barite is one of the dominant sulfatebinding minerals. In such environments, sequential extractions are generally used to identify the U and 226Rabinding phases and their associated reactivity. To better decipher the main processes governing the behavior of 226Ra during