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Ekebergite
A valid IMA mineral species - pending publication
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About Ekebergite
Formula:
ThFeNb2O8
Crystal System:
Monoclinic
New structure type. Note, not to be confused with the varietal name for scapolite, "ekebergite (of Berzelius)".
Unique Identifiers
Mindat ID:
53214
Long-form identifier:
mindat:1:1:53214:3
Similar Names
| Ekebergite (of Berzelius) | A synonym of 'Wernerite' |
IMA Classification of Ekebergite
Classification of Ekebergite
4.DM.35
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
M : With large (+- medium-sized) cations; unclassified
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
M : With large (+- medium-sized) cations; unclassified
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 |
|---|---|---|
| Ekb | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Chemistry of Ekebergite
Mindat Formula:
ThFeNb2O8
Element Weights:
Elements listed:
Crystallography of Ekebergite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/b
Setting:
P2/c
Cell Parameters:
a = 9.815(2) Å, b = 5.629(2) Å, c = 5.224(4) Å
β = 93.520(9)°
β = 93.520(9)°
Ratio:
a:b:c = 1.744 : 1 : 0.928
Unit Cell V:
288.07 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.619 Å | (38) |
| 3.084 Å | (100) |
| 2.953 Å | (98) |
| 2.817 Å | (40) |
| 2.604 Å | (43) |
| 1.913 Å | (38) |
| 1.845 Å | (34) |
| 1.476 Å | (35) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Ekebergite
Place of Conservation of Type Material:
Cotype material is deposited in the mineralogical collections of the Swedish Museum of Natural History, P. O. Box 50007, SE-104 05 Stockholm, Sweden, catalogue number NRM 20170122, and the Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom, registration number BM 2017,17
Synonyms of Ekebergite
Other Language Names for Ekebergite
Dutch:Ekebergiet
German:Ekebergit
Related Minerals - Strunz-mindat Grouping
| 4.DM. | Sugarwhiteite | Pb2Te5O12 |
| 4.DM. | Zuolinite | Ba2Sr(Nb4.5Fe3+0.5)O15 |
| 4.DM. | Petfordite | ZrW6+2O7(OH)2(H2O)2 |
| 4.DM. | Bahariyaite | KMnO4 |
| 4.DM.05 | Rankamaite | (Na,K)3(Ta,Nb,Al)11(O,OH)31 |
| 4.DM.05 | Sosedkoite | (K,Na)5Al2(Ta,Nb)22O60 |
| 4.DM.15 | Cesplumtantite | (Cs,Na)2(Pb,Sb3+)3Ta8O24 |
| 4.DM.20 | Eyselite | Fe3+Ge4+3O7(OH) |
| 4.DM.25 | Konzettite | CaMn4+Te6+O6 |
| 4.DM.25 | Kuranakhite | PbMn4+Te6+O6 |
| 4.DM.30 | Mambertiite | BiMo5+2.80O8(OH) |
| 4.DM.30 | Gelosaite | BiMo6+(2-5x)Mo5+6xO7(OH) · H2O |
| 4.DM.45 | Riesite | TiO2 |
| 4.DM.50 | Sardignaite | BiMo2O7(OH) · 2H2O |
| 4.DM.55 | Tewite | (K1.5◻0.5)(Te1.25W0.25◻0.5)W5O19 |
| 4.DM.60 | Wumuite | K(W2.67Al0.33)O9 |
| 4.DM.60 | Kingsgateite | ZrMo6+2O7(OH)2 · 2H2O |
| 4.DM.60 | Morningstarite | Na(W2.67Fe3+0.33)O9 · H2O |
Radioactivity
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 Ekebergite
mindat.org URL:
https://www.mindat.org/min-53214.html
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References for Ekebergite
Localities for Ekebergite
Showing 2 localities.
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.
Germany (TL) | |
| Hålenius et al. (2018) |
Russia | |
| webmineral.ru (2021) |
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In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany