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Manganonordite-(Ce)

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Big Photo

Pegmatite No. 60, Second Eastern Stream, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Pavel M. Kartashov

Show Manganonordite-(Ce) Photos (3)



Formula:
Na
 
3
SrCeMn
2+
 
Si
 
6
O
 
17
System:OrthorhombicLustre:Vitreous
Hardness:5 - 5½
Member of:Nordite Group
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.


The manganese analogue of Nordite-(Ce) and Ferronordite-(Ce).

Classification of Manganonordite-(Ce)

IMA status:Approved
Strunz 8th edition ID:8/G.03-50
Nickel-Strunz 10th (pending) edition ID:9.DO.15

9 : SILICATES (Germanates)
D : Inosilicates
O : Inosilicates with 7-, 8-, 10-, 12- and 14-periodic chains
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Type Occurrence of Manganonordite-(Ce)

Co-type Localities:Pegmatite No. 60, Second Eastern Stream, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Kedykverpakhk Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Physical Properties of Manganonordite-(Ce)

Lustre:Vitreous
Hardness (Mohs):5 - 5½

Crystallography of Manganonordite-(Ce)

Crystal System:Orthorhombic

Optical Data of Manganonordite-(Ce)

Type:Biaxial (+)
RI values: nα = 1.623 nβ = 1.636 nγ = 1.642
2V:Measured: 60° , Calculated: 66°
Maximum Birefringence:δ = 0.019

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:weak

Chemical Properties of Manganonordite-(Ce)

Formula:
Na
 
3
SrCeMn
2+
 
Si
 
6
O
 
17
Essential elements:Ce, Mn, Na, O, Si, Sr
All elements listed in formula:Ce, Mn, Na, O, Si, Sr

Relationship of Manganonordite-(Ce) to other Species

Member of:Nordite Group
Other Members of Group:

- +
Ferronordite-(Ce)
Na
 
3
SrCeFe
2+
 
Si
 
6
O
 
17
Ferronordite-(La)
Na
 
3
Sr(La,Ce)FeSi
 
6
O
 
17
Nordite-(Ce)
(Ce,La)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
Nordite-(La)
(La,Ce)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
Related Minerals - Nickel-Strunz Grouping):

- +
9.DO.05Pyroxferroite
(Fe,Mn,Ca)SiO
 
3
9.DO.05Pyroxmangite
MnSiO
 
3
9.DO.10Pellyite
Ba
 
2
Ca(Fe,Mg)
 
2
Si
 
6
O
 
17
9.DO.15Nordite-(Ce)
(Ce,La)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
9.DO.15Nordite-(La)
(La,Ce)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
9.DO.15Ferronordite-(Ce)
Na
 
3
SrCeFe
2+
 
Si
 
6
O
 
17
9.DO.15Ferronordite-(La)
Na
 
3
Sr(La,Ce)FeSi
 
6
O
 
17
9.DO.20Alamosite
Pb
 
12
[Si
 
12
O
 
36
]
9.DO.25Liebauite
Ca
 
3
Cu
 
5
Si
 
9
O
 
26

Other Names for Manganonordite-(Ce)

Synonyms:
IMA1997-007
Other Languages:
Russian:Манганонордит-(Ce)

Other Information

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

References for Manganonordite-(Ce)

Reference List:

- +
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1998): 127(1): 32-41.

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    • Localities for Manganonordite-(Ce)

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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Lovozero Massif
            • Karnasurt Mt
              • Second Eastern Stream
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
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