Articles | Volume 36, issue 6
https://doi.org/10.5194/ejm-36-1011-2024
https://doi.org/10.5194/ejm-36-1011-2024
Research article
 | 
11 Dec 2024
Research article |  | 11 Dec 2024

Nannoniite, Al2(OH)5F, a new mineral from the Cetine di Cotorniano mine (Tuscany, Italy)

Cristian Biagioni, Enrico Mugnaioli, Sofia Lorenzon, Daniela Mauro, Silvia Musetti, Jiří Sejkora, Donato Belmonte, Nicola Demitri, and Zdeněk Dolníček

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Cited articles

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Belluomini, G., Fornaseri, M., and Nicoletti, M.: Onoratoite, a new antimony oxychloride from Cetine di Cotorniano, Rosia (Siena, Italy), Mineral. Mag., 36, 1037–1044, 1968. 
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Short summary
Nannoniite, Al2(OH)5F, is a new mineral species discovered in the Cetine di Cotorniano mine (Tuscany, Italy). Its description was possible through a multi-technique approach, and its crystal structure was solved through three-dimensional electron diffraction, revealing close relations with gibbsite. The partial replacement of (OH) by F induces subtle by detectable structural changes. This study reveals that Al hydroxides could be a source of F in geological environments.
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