9/10/2023 0 Comments Bruker apex3( Reference Gaudin, Petříček, Boucher, Taulelle and Evain2001). For details on the averaging of equivalent reflections for twins in JANA, see for instance the appendix in Gaudin et al. Alstonite is formed by the alternation, along c, of Ba-dominant and Ca-dominant layers, separated by CO 3 groups parallel to $|. The crystal structure was solved and refined to R 1 = 0.0727 on the basis of 4515 reflections with F o > 4σ( F o) and 195 refined parameters. Here, we report the crystal-structure determination of the mineral and discuss it in relationship to other polymorphs of BaCa(CO 3) 2. Notwithstanding, its crystal structure was still unknown. It is widespread in Nature and forms magnificent cm-sized crystals. Alstonite, BaCa(CO 3) 2, is a mineral described almost two centuries ago.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |