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Remondite-(La)

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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

Show Remondite-(La) Photos (3)
Formula:
Na
 
3
(La,Ce)
 
3
(CO
 
3
)
 
5
System:MonoclinicColour:Bright yellow orange
Hardness:3
Name:named as the La analogue of remondite-(Ce)
This page provides mineralogical data about Remondite-(La).

Classification of Remondite-(La)

IMA status:Approved 1999
Nickel-Strunz 10th (pending) edition ID:5.AD.15

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
D : With rare-earth elements (REE)
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Type Occurrence of Remondite-(La)

Type Locality:Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
General Appearance of Type Material:microporous aggregates up to 2 mm in size
Geological Setting of type material:in hyperagpaitic pegmatites

Physical Properties of Remondite-(La)

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Bright yellow orange
Streak:White
Hardness (Mohs):3
Hardness Data:Measured
Cleavage:None Observed
Fracture:Conchoidal
Density (measured):3.5 g/cm3
Density (calculated):3.57 g/cm3

Crystallography of Remondite-(La)

Crystal System:Monoclinic
Class (H-M):2 - Sphenoidal
Space Group:P21 {P1 1 21} {P21} {P1 21 1}
Cell Parameters:a = 10.49Å, b = 6.417Å, c = 10.5Å
β = 119.8°
Ratio:a:b:c = 1.635 : 1 : 1.636
Unit Cell Volume:V 613 ų
Z:2

Optical Data of Remondite-(La)

Type:Biaxial (-)
RI values: nα = 1.615 nβ = 1.619 nγ = 1.622
2V:Measured: 80°
Maximum Birefringence:δ = 0.007

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v
Pleochroism:Non-pleochroic

Chemical Properties of Remondite-(La)

Formula:
Na
 
3
(La,Ce)
 
3
(CO
 
3
)
 
5
All elements listed in formula:C, Ce, La, Na, O

Relationship of Remondite-(La) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.AD.05Sahamalite-(Ce)
(Mg,Fe)(Ce,La,Nd)
 
2
(CO
 
3
)
 
4
5.AD.15Petersenite-(Ce)
Na
 
4
(Ce,La,Nd)
 
2
(CO
 
3
)
 
5
5.AD.15Remondite-(Ce)
Na
 
3
(Ce,La,Ca,Na,Sr)
 
3
(CO
 
3
)
 
5
5.AD.20Paratooite-(La)
(REE,Ca,Na,Sr)
 
12
Cu
 
2
(CO
 
3
)
 
16

Other Names for Remondite-(La)

Synonyms:
IMA1999-006
Other Languages:
Russian:Ремондит-(La)

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 Remondite-(La)

Reference List:Pekov, I.V., N.V. Chukanov, N.N. Kononkova, A.E. Zadov & Yu.V. Belovitskaya (2000), Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 129(1): 53-60.

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    Localities for Remondite-(La)

    Hide Locality List
    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (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.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		ZVMO 129(1):53-60(2000)
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		I.V. Pekov, N.V. Chukanov, N.N. Kononkova, A.E. Zadov & Yu.V. Belovitskaya (2000) Zap. Vser. Min. Ob. 129 (1), 53-60
    Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
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