Bohuslavite, Fe43 (PO4)3(SO4)(OH)(H2O)10.nH2O, a new hydrated iron phosphate-sulfate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F19%3A10134735" target="_blank" >RIV/00023272:_____/19:10134735 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/19:00519729
Result on the web
<a href="https://pubs.geoscienceworld.org/eurjmin/article-abstract/31/5-6/1033/573675" target="_blank" >https://pubs.geoscienceworld.org/eurjmin/article-abstract/31/5-6/1033/573675</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1127/ejm/2019/0031-2892" target="_blank" >10.1127/ejm/2019/0031-2892</a>
Alternative languages
Result language
angličtina
Original language name
Bohuslavite, Fe43 (PO4)3(SO4)(OH)(H2O)10.nH2O, a new hydrated iron phosphate-sulfate
Original language description
The new mineral species bohuslavite, Fe43+(PO4)3(SO4)(OH)(H2O)10.nH2O (5 <= n <= 14), has been discovered in the Buca della Vena baryte +/- iron oxides +/- pyrite ore deposit, Apuan Alps, Tuscany (Italy), and in the Horní Město deposit, northern Moravia (Czech Republic). It occurs as pinkish to lilac tabular crystals, with a pseudohexagonal outline, up to 0.25 mm in size, forming globular aggregates up to 1 mm across. At both localities, it is associated with gypsum. Electron microprobe analyses gave (in wt%): SO3 10.92, P2O5 25.34, Al2O3 0.26, Fe2O3 40.70, H2O 35.96, total 113.18 (BdV), and SO3 9.32, P2O5 24.84, Al2O3 0.30, Fe2O3 36.63, H2O 32.49, total 103.58 (HIM). The H2O contents were determined through thermo-gravimetric analyses. Mossbauer spectroscopy indicated that all iron occurs as Fe3+. Thus, the empirical formulae of bohuslavite, based on (Fe+Al) = 4 atoms per formula unit (apfu), are (Fe3.96Al0.04)(PO4)2.77(SO4)1.06(OH)1.56(H2O)10.7.90H2O (BdV) and (Fe3.96Al0.05)(PO4)3.02(SO4)1.00(OH)0.94(H2O)10.5.08H2O (HM), ideally Fe43+(PO4)3(SO4)(OH)(H2O)10.nH2O. Bohuslavite is triclinic, space group P-1, with a = 13.376(3), b = 13.338(3), c = 10.863(4) angstrom, alpha = 92.80(2), beta = 91.03(2), gamma = 119.92(2)degrees, V = 1675.7(9) angstrom3 , Z = 2 (sample BdV). The crystal structure was solved and refined to R-1 = 0.232 on the basis of 2177 unique reflections with F-o > 4 sigma (F-o) and 208 refined parameters. Its crystal structure is based on {001} heteropolyhedral layers with composition [Fe-4(PO4)3O(OH)(H2O)10]. These layers are decorated, on both sides, by SO4 groups. Additional H2O groups are hosted in the interlayers and in the [001] channels. The name bohuslavite honours the Czech mineralogist and geologist Bohuslav Fojt for his contributions to mineralogy and economic geology. A third occurrence of bohuslavite from the Jeremias Gluck mine, Garnsdorf near Saalfeld, Thuringia (Germany), is briefly discussed.
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
<a href="/en/project/GA17-09161S" target="_blank" >GA17-09161S: Crystal structures, chemistry and stability of arsenate and sulfate minerals</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
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
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Volume of the periodical
31
Issue of the periodical within the volume
5-6
Country of publishing house
DE - GERMANY
Number of pages
14
Pages from-to
1033-1046
UT code for WoS article
000505169400015
EID of the result in the Scopus database
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