Detailed Information on Publication Record
2023
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
MAURO, Daniela, Cristian BIAGIONI, Jiří SEJKORA, Zdeněk DOLNÍČEK, Radek ŠKODA et. al.Basic information
Original 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
Authors
MAURO, Daniela, Cristian BIAGIONI, Jiří SEJKORA, Zdeněk DOLNÍČEK and Radek ŠKODA (203 Czech Republic, belonging to the institution)
Edition
European Journal of Mineralogy, Copernicus Publications, 2023, 0935-1221
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10504 Mineralogy
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.100 in 2022
RIV identification code
RIV/00216224:14310/23:00133589
Organization unit
Faculty of Science
UT WoS
001171424700001
Keywords in English
APUAN ALPS (TUSCANY); CRYSTAL-CHEMISTRY; SULFATE MINERALS; BOND-VALENCE; POWDER DIFFRACTION; PARAMETERS; GLADSTONE; ALUMINITE; ALUNOGEN; IRON
Tags
Tags
International impact, Reviewed
Změněno: 8/3/2024 10:09, Mgr. Marie Šípková, DiS.
Abstract
V originále
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 1mm in size, white to colorless in color, with a white streak and a vitreous to greasy luster. Batoniite is biaxial negative, with αCombining double low line1.4833(6), βCombining double low line1.4948(6), γ=1.5019(5) (589nm), and 2V(meas.)Combining double low line71(1). 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 (Al7.98Fe0.013+)ς7.99(SO4)5.01(OH)13.95(H2O)18·5H2O. Batoniite is triclinic, belonging to space group P1ĝ€3/4, with aCombining double low line9.1757(6), bCombining double low line12.0886(9), cCombining double low line20.9218(15)Å, αCombining double low line82.901(3), βCombining double low line87.334(3), 3Combining double low line86.999(2)°, VCombining double low line2297.8(3)Å3, and ZCombining double low line2. The crystal structure was refined to R1Combining double low line0.0916 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.