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Rémondite-(La)

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Formula:
Na3(La,Ce)3(CO3)5
Colour:
Bright yellow orange
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.5
Crystal System:
Monoclinic
Name:
For its relation to Rémondite-(Ce), and the predominance of La over other rare-earth elements in the composition.
This page provides mineralogical data about Rémondite-(La).


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Classification of Rémondite-(La)Hide

Approved
Approval Year:
1999
5.AD.15

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

Physical Properties of Rémondite-(La)Hide

Vitreous
Transparency:
Transparent
Colour:
Bright yellow orange
Streak:
White
Hardness:
Hardness Data:
Measured
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
3.5 g/cm3 (Measured)    3.57 g/cm3 (Calculated)

Optical Data of Rémondite-(La)Hide

Type:
Biaxial (-)
RI values:
nα = 1.615 nβ = 1.619 nγ = 1.622
2V:
Measured: 80°
Max Birefringence:
δ = 0.007
Image 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 Rémondite-(La)Hide

Formula:
Na3(La,Ce)3(CO3)5
IMA Formula:
Na3(La,Ce,Ca)3(CO3)5

Crystallography of Rémondite-(La)Hide

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

Type Occurrence of Rémondite-(La)Hide

General Appearance of Type Material:
microporous aggregates up to 2 mm in size
Geological Setting of Type Material:
in hyperagpaitic pegmatites

Synonyms of Rémondite-(La)Hide

Other Language Names for Rémondite-(La)Hide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Synchysite-(Ce)1 photo of Rémondite-(La) associated with Synchysite-(Ce) on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.AD.05Sahamalite-(Ce)(Mg,Fe)(Ce,La,Nd)2(CO3)4Mon. 2/m : P21/b
5.AD.15Petersenite-(Ce)Na4(Ce,La,Nd)2(CO3)5Mon. 2 : P21
5.AD.15Rémondite-(Ce)Na3(Ce,La,Ca,Na,Sr)3(CO3)5Mon. 2 : P21
5.AD.20Paratooite-(La)(REE,Ca,Na,Sr)12Cu2(CO3)16Orth. 2 2 2

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 Rémondite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
PEKOV, I.V., CHUKANOV, N.V., KONONKOVA, N.N., ZADOV, A.E., and BELOVITSKAYA, Yu.v. (2000) Remondite-(La) Na3(La,Ce,Ca)3(CO3)5 - a new mineral of the burbankite family. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva, 129, 53-60 (in Russian with English abstract).

Internet Links for Rémondite-(La)Hide

Localities for Rémondite-(La)Hide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
ZVMO 129(1):53-60(2000)
Russia (TL)
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
          • Koashva Mt
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
Mineral and/or Locality  
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