Nannoniite, Al2(OH)5F, a new mineral from the Cetine di Cotorniano mine (Tuscany, Italy)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F24%3A10136756" target="_blank" >RIV/00023272:_____/24:10136756 - isvavai.cz</a>
Result on the web
<a href="https://ejm.copernicus.org/articles/36/1011/2024/" target="_blank" >https://ejm.copernicus.org/articles/36/1011/2024/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5194/ejm-36-1011-2024" target="_blank" >10.5194/ejm-36-1011-2024</a>
Alternative languages
Result language
angličtina
Original language name
Nannoniite, Al2(OH)5F, a new mineral from the Cetine di Cotorniano mine (Tuscany, Italy)
Original language description
The new mineral nannoniite, Al2(OH)5F (Z = 4), has been discovered in the Cetine di Cotorniano mine, Chiusdino, Siena, Tuscany, Italy. It occurs as spherical aggregates formed by μm-sized crystals, colourless to white in colour, with a white streak and a vitreous to earthy lustre. Fluorescence is bluish-yellow and white-yellowish under short and long UV radiation, respectively. Electron microprobe analysis gave (in wt%): SO3 0.49, Al2O3 63.97, MgO 0.51, CaO 0.22, K2O 0.07, F 11.72, H2O(calc) 28.54, -O = F -4.94, total 100.58. Nannoniite is monoclinic, space group P21/n, with a = 8.688(3), b = 5.024(2), c = 9.734(4) Å, β = 90.77(2)o, V = 424.9(3) Å3, Z = 4. The crystal structure was solved using three-dimensional electron diffraction and refined to R(obs) = 0.1524 for 2141 unique reflections with I > 3σ(I). Nannoniite is homeotypic with gibbsite. In type material, nannoniite is associated with quartz, baryte, gypsum, and alunite in vugs of silicified limestone. Its origin is probably related to the late-stage circulation of (Al,F)-rich fluids within the Sb ore deposit formerly exploited at the Cetine di Cotorniano mine.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10504 - Mineralogy
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Journal of Mineralogy
ISSN
0935-1221
e-ISSN
—
Volume of the periodical
36
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
1011-1022
UT code for WoS article
001375284500001
EID of the result in the Scopus database
—