Manganonordite-(Ce)
A valid IMA mineral species
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About Manganonordite-(Ce)
Formula:
Na3SrCeMn2+Si6O17
Colour:
Greyish-pink when fresh, black to brown or yellow when altered
Lustre:
Greasy
Hardness:
5 - 5½
Specific Gravity:
3.43
Crystal System:
Orthorhombic
Member of:
Name:
Named as the Mn++ dominant analogue of nordite-(Ce). Nordite series is named after the word for north because of its northern origin in the Lovozero Massif.
Unique Identifiers
Mindat ID:
7170
Long-form identifier:
mindat:1:1:7170:9
GUID
(UUID V4):
(UUID V4):
f0df62ea-a06c-422c-886d-3799b1ee73f5
IMA Classification of Manganonordite-(Ce)
Approved
First published:
1998
Type description reference:
Pekov, I. V., Chukanov, N. V., Kononkova, N. N., Belakovsky, D. I., Pushcharovsky, D. Y., Vinogradova, S. A. (1998) Ferronordite-(Ce) Na3SrFeSi6O17 and manganonordite-(Ce) Na3SrMnSi6O17 — the new minerals from Lovozero massif, Kola Peninsula. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 127 (1) 32-41
Classification of Manganonordite-(Ce)
9.DO.15
9 : SILICATES (Germanates)
D : Inosilicates
O : Inosilicates with 7-, 8-, 10-, 12- and 14-periodic chains
9 : SILICATES (Germanates)
D : Inosilicates
O : Inosilicates with 7-, 8-, 10-, 12- and 14-periodic chains
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 |
---|---|---|
Mnor-Ce | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Manganonordite-(Ce)
Greasy
Transparency:
Transparent
Comment:
Greasy on fractures
Colour:
Greyish-pink when fresh, black to brown or yellow when altered
Streak:
White
Hardness:
5 - 5½ on Mohs scale
Hardness:
VHN15=777 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {100}, with two additional {h0l} cleavages.
Perfect on {100}, with two additional {h0l} cleavages.
Fracture:
Irregular/Uneven
Density:
3.43(3) g/cm3 (Measured) 3.51(1) g/cm3 (Calculated)
Optical Data of Manganonordite-(Ce)
Type:
Biaxial (+)
RI values:
nα = 1.623(3) nβ = 1.636(2) nγ = 1.642(2)
2V:
Measured: 60° (10), Calculated: 68°
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak
Optical Extinction:
X = a; Y = b; Z = c.
Chemistry of Manganonordite-(Ce)
Mindat Formula:
Na3SrCeMn2+Si6O17
Crystallography of Manganonordite-(Ce)
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pcca
Setting:
Pcca
Cell Parameters:
a = 14.44(2) Å, b = 5.187(5) Å, c = 19.82(1) Å
Ratio:
a:b:c = 2.784 : 1 : 3.821
Unit Cell V:
1,484.52 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Thin platy crystals, flattened. Main form is {100}.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.215 Å | (100) |
3.326 Å | (67) |
2.965 Å | (83) |
2.875 Å | (55) |
2.597 Å | (54) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Manganonordite-(Ce)
Co-Type Localities:
General Appearance of Type Material:
Rosette-like aggregates, up to 5-10 mm in diameter, consisting of tabular crystals.
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Moscow, Russia.
Geological Setting of Type Material:
In an alkaline massif within nests and veinlets of pegmatoid ussingite-bearing rocks.
Associated Minerals at Type Locality:
Reference:
Pekov, I.V., N.V. Chukanov, N.N. Kononkova, D.I. Belakovsky, D.Yu. Pushcharovsky, and S.A. Vinogradova (1998) Ferronordite-(Ce) Na3SrFeSi6O17 and manganonordite-(Ce) Na3SrMnSi6O17 - new minerals from the Lovozero massif, Kola Peninsula. Zapiski Vseross. Mineral. Obshch., 127(1), 32-40 (in Russian, English abs.).
Synonyms of Manganonordite-(Ce)
Other Language Names for Manganonordite-(Ce)
Russian:Манганонордит-(Ce)
Relationship of Manganonordite-(Ce) to other Species
Member of:
Other Members of this group:
Ferronordite-(Ce) | Na3SrCeFe2+Si6O17 | Orth. mmm (2/m 2/m 2/m) : Pcca |
Ferronordite-(La) | Na3Sr(La,Ce)FeSi6O17 | Orth. |
Illoqite-(Ce) | Na2NaBaCeZnSi6O17 | Orth. mmm (2/m 2/m 2/m) : Pcca |
Nordite-(Ce) | (Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 | Orth. mmm (2/m 2/m 2/m) : Pcca |
Nordite-(La) | (La,Ce)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 | Orth. mmm (2/m 2/m 2/m) : Pcca |
Common Associates
Associated Minerals Based on Photo Data:
2 photos of Manganonordite-(Ce) associated with Rhabdophane-(Ce) | Ce(PO4) · 0.6H2O |
2 photos of Manganonordite-(Ce) associated with Ussingite | Na2AlSi3O8OH |
1 photo of Manganonordite-(Ce) associated with Gerasimovskite | (Mn,Ca)(Nb,Ti)5O12 · 9H2O |
1 photo of Manganonordite-(Ce) associated with Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
Related Minerals - Strunz-mindat Grouping
9.DO. | Braccoite | NaMn2+5[Si5As5+O17(OH)](OH) |
9.DO. | Illoqite-(Ce) | Na2NaBaCeZnSi6O17 |
9.DO.05 | Pyroxferroite | (Fe,Mn,Ca)SiO3 |
9.DO.05 | Pyroxmangite | Mn2+SiO3 |
9.DO.10 | Pellyite | Ba2Ca(Fe,Mg)2Si6O17 |
9.DO.15 | Nordite-(Ce) | (Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 |
9.DO.15 | Nordite-(La) | (La,Ce)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 |
9.DO.15 | Ferronordite-(Ce) | Na3SrCeFe2+Si6O17 |
9.DO.15 | Ferronordite-(La) | Na3Sr(La,Ce)FeSi6O17 |
9.DO.15 | Meieranite | Na2Sr3MgSi6O17 |
9.DO.20 | Alamosite | PbSiO3 |
9.DO.25 | Liebauite | Ca3Cu5Si9O26 |
9.DO.30 | Vladykinite | Na3Sr4(Fe2+Fe3+)Si8O24 |
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 Manganonordite-(Ce)
mindat.org URL:
https://www.mindat.org/min-7170.html
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References for Manganonordite-(Ce)
Reference List:
Pekov, I. V., Chukanov, N. V., Kononkova, N. N., Belakovsky, D. I., Pushcharovsky, D. Y., Vinogradova, S. A. (1998) Ferronordite-(Ce) Na3SrFeSi6O17 and manganonordite-(Ce) Na3SrMnSi6O17 — the new minerals from Lovozero massif, Kola Peninsula. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 127 (1) 32-41
Localities for Manganonordite-(Ce)
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Pekov et al. (1998) +2 other references |
| Pekov et al. (1998) +2 other references |
Yakovenchuk et al. (2011) |
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Pegmatite No. 60, Second Eastern Stream, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia