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UM2008-49-SO:FeNa
Valid as an unnamed mineral
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Formula:
Na3Fe(SO4)3
Crystal System:
Trigonal
Associated with eldfellite and UM2008-50-SO:HMgNa.
The Na analogue of pyracmonite (though not isostructural with it).
The Fe analogue of heimaeyite.
Reported as "mineral EN".
Known as a synthetic compound (obtained during thermal transformation of sideronatrite at ca. 400oC, by Scordari et al., 2011).
Water-sensitive and relatively unstable under ambient conditions.
The crystal structure (material of Scordari et al., 2011) contains FeO6 octahedra that are share corners with sulfate tetrahedra to form infinite Fe(SO4)3 chains along c. Na atoms join these chains to form the 3D network with strong Fe-O-S and weak Na-O bonds.
The Na analogue of pyracmonite (though not isostructural with it).
The Fe analogue of heimaeyite.
Reported as "mineral EN".
Known as a synthetic compound (obtained during thermal transformation of sideronatrite at ca. 400oC, by Scordari et al., 2011).
Water-sensitive and relatively unstable under ambient conditions.
The crystal structure (material of Scordari et al., 2011) contains FeO6 octahedra that are share corners with sulfate tetrahedra to form infinite Fe(SO4)3 chains along c. Na atoms join these chains to form the 3D network with strong Fe-O-S and weak Na-O bonds.
Unique Identifiers
Mindat ID:
39535
Long-form identifier:
mindat:1:1:39535:7
Similar Names
| UM1961-07-S:FeN | (Fe,Ni)2S | |
| UM1973-17-S:FeNi | (Fe,Ni)9S11 | |
| UM1973-18-S:FeNi | (Fe,Ni)9S11 | |
| UM1989-25-S:FeNi | Fe(Ni,Co)S2 | |
| UM1998-16-S:FeNi | A synonym of Horomanite | Fe6Ni3S8 |
| UM2002-26-S:FeNi | (Ni,Fe)9S8 |
IMA Classification of UM2008-49-SO:FeNa
IMA status notes:
Unnamed (probably valid)
Chemistry of UM2008-49-SO:FeNa
Mindat Formula:
Na3Fe(SO4)3
Element Weights:
Elements listed:
Crystallography of UM2008-49-SO:FeNa
Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 13.6231(1) Å, c = 9.0698(1) Å
Ratio:
a:c = 1 : 0.666
Unit Cell V:
1457.76 ų
Z:
6
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for UM2008-49-SO:FeNa
mindat.org URL:
https://www.mindat.org/min-39535.html
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References for UM2008-49-SO:FeNa
Localities for UM2008-49-SO:FeNa
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Iceland | |
| Balić-Žunić et al. (2025) |
