Crystal chemistry and isomorphism features in uranyl and neptunyl mixed sulfate-selenate compounds
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| RMS-DPI code: |
2017-1-34-0 |
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| Scientific session: |
2. Mineralogical crystallography and crystal chemistry. |
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| Author listing: |
Gurzhiy V.V., Kornyakov I.V., Tyumentseva O.S., Krivovichev S.V., Burns P.C. |
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| Principal author: |
Gurzhiy Vladislav Vladimirovich |
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| Language: |
Russian |
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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 |
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| Date of presentation: |
11/10/2017 |
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| Presentation Place: |
Горный университет, Малый Актовый зал |
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| RMS-DPI code: |
2017-1-34-0 |
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| Pages: |
39-40 |
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File of proceedings
(PDF): |
107 K
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| Status: |
printed |
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| Accepted: |
15/09/2017 |
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| Published on-line: |
06/12/2017 |
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| Permanent address of publication: |
http://www.minsoc.ru/2017-1-34-0/ |
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| Contact author(s): |
Gurzhiy, Vladislav Vladimirovich |
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