Ferronordite-(La)
A valid IMA mineral species
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About Ferronordite-(La)
Formula:
Na3Sr(La,Ce)FeSi6O17
Colour:
Colorless to pale brown
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.54
Crystal System:
Orthorhombic
Member of:
Name:
For the association with Ferronordite-(Ce)
Unique Identifiers
Mindat ID:
11208
Long-form identifier:
mindat:1:1:11208:2
GUID
(UUID V4):
(UUID V4):
6ee41f99-4cf5-44e7-848e-13d71c4941bd
IMA Classification of Ferronordite-(La)
Classification of Ferronordite-(La)
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 |
---|---|---|
Fnor-La | 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 Ferronordite-(La)
Vitreous
Transparency:
Transparent
Colour:
Colorless to pale brown
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
(010)
(010)
Density:
3.54 g/cm3 (Measured) 3.62 g/cm3 (Calculated)
Optical Data of Ferronordite-(La)
Type:
Biaxial (-)
RI values:
nα = 1.624(1) nβ = 1.637(1) nγ = 1.644(1)
2V:
Measured: 60° , Calculated: 72°
Max Birefringence:
δ = 0.020
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:
г>v, weak
Chemistry of Ferronordite-(La)
Mindat Formula:
Na3Sr(La,Ce)FeSi6O17
Crystallography of Ferronordite-(La)
Crystal System:
Orthorhombic
Cell Parameters:
a = 14.440(5) Å, b = 5.191(5) Å, c = 19.86(2) Å
Ratio:
a:b:c = 2.782 : 1 : 3.826
Unit Cell V:
1,488.67 ų (Calculated from Unit Cell)
Z:
4
Comment:
Pcaa space group by analogy with other members nordite group
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 Ferronordite-(La)
General Appearance of Type Material:
tabular crystals uр to 8 x 5 x 1 mm, spherulites with diameter 1.5 cm in ussingite.
Place of Conservation of Type Material:
Fersman Minera1ogica1 Museum of Russian Academy of Sciences, Moscow
Geological Setting of Type Material:
ussingite cores of two hyperagpaitic pegmatites
Associated Minerals at Type Locality:
Synonyms of Ferronordite-(La)
Other Language Names for Ferronordite-(La)
Relationship of Ferronordite-(La) to other Species
Member of:
Other Members of this group:
Ferronordite-(Ce) | Na3SrCeFe2+Si6O17 | Orth. mmm (2/m 2/m 2/m) : Pcca |
Illoqite-(Ce) | Na2NaBaCeZnSi6O17 | Orth. mmm (2/m 2/m 2/m) : Pcca |
Manganonordite-(Ce) | Na3SrCeMn2+Si6O17 | 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:
4 photos of Ferronordite-(La) associated with Rhabdophane-(La) | La(PO4) · H2O |
4 photos of Ferronordite-(La) associated with Ussingite | Na2AlSi3O8OH |
3 photos of Ferronordite-(La) associated with Ferronordite-(Ce) | Na3SrCeFe2+Si6O17 |
2 photos of Ferronordite-(La) associated with Magnesio-arfvedsonite | {Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2 |
2 photos of Ferronordite-(La) associated with Epistolite | (Na◻)Nb2Na3Ti(Si2O7)2O2(OH)2(H2O)4 |
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 | Manganonordite-(Ce) | Na3SrCeMn2+Si6O17 |
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 Ferronordite-(La)
mindat.org URL:
https://www.mindat.org/min-11208.html
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References for Ferronordite-(La)
Localities for Ferronordite-(La)
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. (2001) |
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Bolshoi Punkaruaiv Mountain, Lovozersky District, Murmansk Oblast, Russia