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Nordite-(La)

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About Nordite-(La)Hide

Formula:
(La,Ce)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17
Hardness:
5 - 6
Member of:
Name:
Originally named nordite for the northern latitudes, where the mineral was discovered. The suffix was added by Levinson in 1966 to denote the dominant rare earth element.
The zinc analogue of Ferronordite-(La). The lanthanum analogue of Nordite-(Ce).


Classification of Nordite-(La)Hide

Approved, 'Grandfathered' (first described prior to 1959)
9.DO.15

9 : SILICATES (Germanates)
D : Inosilicates
O : Inosilicates with 7-, 8-, 10-, 12- and 14-periodic chains
72.5.2.3

72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
5 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with corrugated and complex layers
14.8.10

14 : Silicates not Containing Aluminum
8 : Silicates of Group III metals other than Al

Physical Properties of Nordite-(La)Hide

Hardness:
5 - 6 on Mohs scale

Optical Data of Nordite-(La)Hide

Type:
Biaxial (-)
RI values:
nα = 1.619 - 1.620 nβ = 1.630 - 1.640 nγ = 1.642 - 1.644
2V:
Measured: 31° to 32°, Calculated: 46° to 90°
Max Birefringence:
δ = 0.023 - 0.024
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong

Chemical Properties of Nordite-(La)Hide

Formula:
(La,Ce)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17
IMA Formula:
Na3SrLaZnSi6O17

Type Occurrence of Nordite-(La)Hide

Other Language Names for Nordite-(La)Hide

Simplified Chinese:硅钠锶镧石
Traditional Chinese:矽鈉鍶鑭石

Relationship of Nordite-(La) to other SpeciesHide

Member of:
Other Members of this group:
Ferronordite-(Ce)Na3SrCeFe2+Si6O17Orth.
Ferronordite-(La)Na3Sr(La,Ce)FeSi6O17
Manganonordite-(Ce)Na3SrCeMn2+Si6O17Orth.
Nordite-(Ce)(Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17

Common AssociatesHide

Associated Minerals Based on Photo Data:
Magnesio-arfvedsonite1 photo of Nordite-(La) associated with Magnesio-arfvedsonite on mindat.org.
Natrolite1 photo of Nordite-(La) associated with Natrolite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DO.05Pyroxferroite(Fe,Mn,Ca)SiO3Tric.
9.DO.05PyroxmangiteMnSiO3Tric. 1
9.DO.10PellyiteBa2Ca(Fe,Mg)2Si6O17Orth.
9.DO.15Nordite-(Ce)(Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17
9.DO.15Ferronordite-(Ce)Na3SrCeFe2+Si6O17Orth.
9.DO.15Manganonordite-(Ce)Na3SrCeMn2+Si6O17Orth.
9.DO.15Ferronordite-(La)Na3Sr(La,Ce)FeSi6O17
9.DO.20AlamositePbSiO3Mon.
9.DO.25LiebauiteCa3Cu5Si9O26Mon.

Related Minerals - Dana Grouping (8th Ed.)Hide

72.5.2.1LeucospheniteBaNa4Ti2B2Si10O30Mon.
72.5.2.2Nordite-(Ce)(Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17
72.5.2.4Semenovite-(Ce)Na8Ca2FeBe6Ce2Si14O40(OH)4F4Orth. mmm (2/m 2/m 2/m)

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.8.1Thalénite-(Y)Y3Si3O10FMon.
14.8.2Keiviite-(Y)Y2Si2O7
14.8.3Keiviite-(Yb)Yb2Si2O7Mon. 2/m : B2/m
14.8.4Tombarthite-(Y)Y4(Si,H4)4O12-x(OH)4+2xMon.
14.8.5ThortveititeSc2Si2O7Mon.
14.8.6Sazhinite-(Ce)Na2CeSi6O14•6H2O
14.8.7Monteregianite-(Y)(Na,K)6(Y,Ca)2Si16O38 · 10H2OMon. 2/m
14.8.8Iraqite-(La)KCa2(La,Ce,Th)Si8O20Tet.
14.8.9Ashcroftine-(Y)K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8 · 8H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
14.8.11Nordite-(Ce)(Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17
14.8.12JervisiteNaSc3+Si2O6Mon.
14.8.13Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
14.8.14CascanditeCa(Sc,Fe3+)(HSi3O9)Tric. 1

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Nordite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gerasimovsky, V.I. (1941) Nordite, a new mineral of the Lovozero tundras. Comptes Rendus (Doklady) de l'Académie des Sciences de l'URSS: 32: 496-498.
Fleischer, M. (1943) New mineral names. American Mineralogist: 28: 282-284.
Borovskii, I.B., Gerasimovskii, V.I. (1945) Rare earths in minerals. Compt. Rend. Acad. Sci. URSS: 49: 353-356.
Gerasimovskii, V.I., Turanskaya, N.V. (1957) The high content of lanthanum and cerium in minerals of the agpaitic syenites of the Lovozero massif (Kola Peninsula). Geokhimiya: 4: 393-396.
Levinson, A.A. (1966) A system of nomenclature for rare-earth minerals. American Mineralogist: 51: 152-158.
Bakakin, V.V., Belov, N.V., Borisov, S.V., Solovyeva, L.P. (1970) The crystal structure of nordite and its relationship to melilite and datolite-gadolinite. American Mineralogist: 55: 1167-1181.

Internet Links for Nordite-(La)Hide

Localities for Nordite-(La)Hide

ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia
 
  • Murmanskaya Oblast'
    • Khibiny Massif
      • Eveslogchorr Mt
I.V. Pekov data
Pavel M. Kartashov data
    • Lovozero Massif
      • Chinglusuai River Valley
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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