Batoniite, [Al8(OH)14(H2O)18](SO4)5.5H2O, a new mineral with the [Al8(OH)14(H2O)18]10+ polyoxocation 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_____%2F23%3A10136193" target="_blank" >RIV/00023272:_____/23:10136193 - isvavai.cz</a>
Result on the web
<a href="https://ejm.copernicus.org/articles/35/703/2023/" target="_blank" >https://ejm.copernicus.org/articles/35/703/2023/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5194/ejm-35-703-2023" target="_blank" >10.5194/ejm-35-703-2023</a>
Alternative languages
Result language
angličtina
Original language name
Batoniite, [Al8(OH)14(H2O)18](SO4)5.5H2O, a new mineral with the [Al8(OH)14(H2O)18]10+ polyoxocation from the Cetine di Cotorniano Mine, Tuscany, Italy
Original language description
The new mineral batoniite, [Al8(OH)14(H2O)18](SO4)5.5H2O, was discovered in the Cetine di Cotorniano Mine, Chiusdino, Siena, Tuscany, Italy. It occurs as hemispherical aggregates composed of brittle tabular crystals, up to 1 mm in size, white to colorless in color, with a white streak and a vitreous to greasy luster. Batoniite is biaxial negative, with α=1.4833(6), β=1.4948(6), γ=1.5019(5) (589 nm), and 2V(meas) = 71(1)o. Electron microprobe analysis, affected by the dehydration of batoniite under the chamber vacuum, gave (in wt %) the following: Al2O3 33.48, Fe2O3 0.05, SO3 33.00, and H2Ocalc 44.41, total 110.94. It corresponds to the chemical formula (Al7.98Fe0.01(SO4)5.01(OH)13.95(H2O)18.5H2O. Batoniite is triclinic, belonging to space group P-1, with a= 9.1757(6), b= 12.0886(9), c= 20.9218(15) Å, α= 82.901(3), β= 87.334(3), γ= 86.999(2)o, V= 2297.8(3) Å3, and Z= 2. The crystal structure was refined to R1= 0.0916 for 8118 unique reflections with Fo>4σ(Fo) and 811 refined parameters and 60 restraints. Batoniite is characterized by isolated [Al8(OH)14(H2O)18]10+ polyoxocations, H-bonded to five interstitial (SO4)2- and five H2O groups. In type material, it is associated with gypsum and a poorly crystallized Al-Fe sulfate. The crystallization of batoniite is probably due to the action of H2SO4 on Al-bearing rocks of Paleozoic age cropping out in the Garibaldi Tunnel, the lowest mining level of the Cetine di Cotorniano Mine.
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
10504 - Mineralogy
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
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
1617-4011
e-ISSN
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Volume of the periodical
35
Issue of the periodical within the volume
5
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
703-714
UT code for WoS article
001171424700001
EID of the result in the Scopus database
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