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Eleonorite
A synonym of Beraunite
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Hardness:
3
Specific Gravity:
2.92
Crystal System:
Monoclinic
Name:
It was first described as "oxiberaunite", an oxidised "variety" of beraunite from the Eleonore Mine, Rodheim-Bieber, Wetzlar, Hesse, Germany. Approved by IMA as a new mineral in 2015 (IMA 2015-003).
Beraunite was originally defined as a fully oxidised mineral, but was redefined by Fanfani and Zanazzi (1967), on the basis of a crystal structural analysis, as a mixed-valence iron phosphate and they left the original fully oxidized end-member unnamed. In essence, Fanfani and Zanazzi (1967) had discovered a new mineral species (ferroberaunite) but re-used a previous name. In the 19th century, both beraunite and eleonorite had been applied to the fully oxidized mineral. Eleonorite had been re-applied by the IMA to the oxidized end-member of the beraunite-eleonorite series.
In the IMA 21-D redefinition the name beraunite was reapplied to the oxidised phase, eleonorite discredited as a synonym, and ferroberaunite created for the mixed valence species.
Beraunite was originally defined as a fully oxidised mineral, but was redefined by Fanfani and Zanazzi (1967), on the basis of a crystal structural analysis, as a mixed-valence iron phosphate and they left the original fully oxidized end-member unnamed. In essence, Fanfani and Zanazzi (1967) had discovered a new mineral species (ferroberaunite) but re-used a previous name. In the 19th century, both beraunite and eleonorite had been applied to the fully oxidized mineral. Eleonorite had been re-applied by the IMA to the oxidized end-member of the beraunite-eleonorite series.
In the IMA 21-D redefinition the name beraunite was reapplied to the oxidised phase, eleonorite discredited as a synonym, and ferroberaunite created for the mixed valence species.
Synonym:
A synonym of Beraunite
Unique Identifiers
Mindat ID:
7212 (as Eleonorite)
628 (as Beraunite)
628 (as Beraunite)
Long-form identifier:
mindat:1:1:7212:6 (as Eleonorite)
mindat:1:1:628:6 (as Beraunite)
mindat:1:1:628:6 (as Beraunite)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Eln | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Internet Links for Eleonorite
mindat.org URL:
https://www.mindat.org/min-7212.html
Please feel free to link to this page.
Please feel free to link to this page.
References for Eleonorite
Reference List:
Fischer, E. (1956) Über Beraunit-Eleonorit. Heidelberger Beiträge zur Mineralogie und Petrographie, 5 (3). 204-209 doi:10.1007/bf01104158
Fanfani, I., Zanazzi, P. F. (1967) The crystal structure of beraunite. Acta Crystallographica, 22 (2) 173-181 doi:10.1107/s0365110x67000301
Moore, Paul B. (1970) Crystal chemistry of the basic iron phosphates. American Mineralogist, 55 (1-2) 135-169
Moore, Paul B., Kampf, Anthony R. (1992) Beraunite: Refinement, comparative crystal chemistry, and selected bond valences. Zeitschrift für Kristallographie, 201 (3-4). 263-281 doi:10.1524/zkri.1992.201.3-4.263
Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2015) New minerals and nomenclature modifications approved in 2015, CNMNC Newsletter No 25. Mineralogical Magazine, 79 (3) 529-535 doi:10.1180/minmag.2015.079.3.02
Chukanov, Nikita V., Aksenov, Sergey M., Rastsvetaeva, Ramiza K., Schäfer, Christof, Pekov, Igor V., Belakovskiy, Dmitriy I., Scholz, Ricardo, de Oliveira, Luiz C.A., Britvin, Sergey N. (2017) Eleonorite, Fe63+(PO4)4O(OH)4·6H2O: validation as a mineral species and new data. Mineralogical Magazine, 81 (1) 61-76 doi:10.1180/minmag.2016.080.070
Eleonore Mine, Fellingshausen, Biebertal, Giessen, Giessen Region, Hesse, Germany