Crystal structure of richetite revisited: crystallographic evidence for the presence of pentavalent uranium
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00479122" target="_blank" >RIV/68378271:_____/17:00479122 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.2138/am-2017-6092" target="_blank" >http://dx.doi.org/10.2138/am-2017-6092</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2138/am-2017-6092" target="_blank" >10.2138/am-2017-6092</a>
Alternative languages
Result language
angličtina
Original language name
Crystal structure of richetite revisited: crystallographic evidence for the presence of pentavalent uranium
Original language description
Revision of crystal structure of the rare U-oxide mineral richetite provided crystallographic evidence for the presence of pentavalent U. The structure of richetite was solved by charge-flipping algorithm and refined to an agreement index (R) of 5.6% for 9955 unique reflections collected using microfocus X ray source. The refined structure, in line with the previous structure determination, contains U-O-OH sheets of the a-U3O8 type and an interstitial complex comprising Pb2+, Fe2+, Mg2+ cations and molecular H2O. However, the bond-valence sum incident at one U site within the sheet (U17) together with charge-balance requirements, indicate that U17 site is occupied by U5+. The color of richetite also supports the presence of U5+ in the structure. Richetite is the third mineral containing pentavalent uranium that occurs in nature.n
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/LO1603" target="_blank" >LO1603: Centre of Technology and Advanced Structure Analysis of Materials with Application Impact</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
American Mineralogist
ISSN
0003-004X
e-ISSN
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Volume of the periodical
102
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
1771-1775
UT code for WoS article
000410608000002
EID of the result in the Scopus database
2-s2.0-85029385619