Russian Mineralogical Society
200th Anniversary Meeting of the Russian Mineralogical Society
Crystal chemistry and isomorphism features in uranyl and neptunyl mixed sulfate-selenate compounds

RMS-DPI code:  2017-1-34-0
Scientific session:  2. Mineralogical crystallography and crystal chemistry.
Author listing:  Gurzhiy V.V., Kornyakov I.V., Tyumentseva O.S., Krivovichev S.V., Burns P.C.
Principal author:  Gurzhiy Vladislav Vladimirovich
Language:  Russian
Abstract - Summary 
(short description):
Chemical and structural similarity of S6+ and Se6+ ions should results in significant amounts of mixed sulfate-selenate phases (uranyl sulfates are one of the most common secondary minerals of U6+), however there were no detectable amounts of Se observed in natural uranyl sulfates. Aqueous uranyl- and neptunyl-containing systems with variable content of sulfate and selenate ions with addition of mono- and divalent cations (K, Cs, Mg) had been investigated. As the result of current studies an absence of a continuous solid solution was found, along with the absence of isotypic sulfates and selenates, which demonstrated that there are crystal-chemical restrictions on the incorporation of Se into the sulfate-containing uranyl compounds
Date of presentation:  11/10/2017
Presentation Place:  Горный университет, Малый Актовый зал
RMS-DPI code:  2017-1-34-0
Pages:  39-40
File of proceedings 
 107 K
Status:  printed
Accepted:  15/09/2017
Published on-line:  06/12/2017
Permanent address of publication:
Contact author(s):  Gurzhiy, Vladislav Vladimirovich

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printed on 24/06/2021