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Mineralogical ClassificationCrystal structure of chlorinated mineral of cancrinite group with bystrite-type framework
7th Sep 2017 10:08 UTCMarco E. Ciriotti Manager
▪ Kaneva, E.V., Sapozhnikov, A.N., Suvorova, L.F. (2017): Crystal Structure of Chlorinated Mineral of Cancrinite Group with Bystrite-Type Framework. Crystallography Reports, 62, 558-565.
Abstract:
The formula of chlorinated bystrite (rare mineral of cancrinite group) has been refined to Na7.22Ca0.92[Al6Si6O24](S5)0.94Cl1.01. The X-ray diffraction data on the contents of chlorine and sulfur in this mineral are confirmed by the results of chemical analysis. The bystrite cage is found to contain a (S5)2– cluster, which is elongated along the c axis and has a chain configuration. Different ways of aggregation of sulfur atoms lead to cis- and trans-configurations of chains. Columns of cancrinite cages contain –Ca–Cl–Ca–Cl– chains, which were observed previously in the structures of minerals of davyne subgroup, afghanite, and tounkite.
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 13, 2024 00:58:35