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Thorbastnäsite

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Thorbastnäsite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Thorbastnäsite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Thorbastnäsite, etc.

Malencogne quarry, Saint-Julien-Molin-Molette, Bourg-Argental, Loire, Auvergne-Rhône-Alpes, France
Thorbastnäsite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Thorbastnäsite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Thorbastnäsite, etc.

Malencogne quarry, Saint-Julien-Molin-Molette, Bourg-Argental, Loire, Auvergne-Rhône-Alpes, France
Thorbastnäsite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Thorbastnäsite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
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About ThorbastnäsiteHide

Formula:
ThCa(CO3)2F2 · 3H2O
May contain minor REE.
Colour:
Brown
Hardness:
4 - 4½
Name:
The name reflects its thorium content and similarity to bastnäsite.
This page provides mineralogical data about Thorbastnäsite.


Classification of ThorbastnäsiteHide

IMA status:
Approved
Strunz 8th ed.:
5/E.10-10
Nickel-Strunz 10th (pending) ed.:
5.BD.20a

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
Dana 8th ed.:
16b.1.2.1

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1
Hey's CIM Ref.:
12.1.22

12 : Carbonates with other anions
1 : Carbonates with halides

Physical Properties of ThorbastnäsiteHide

Colour:
Brown
Hardness:
4 - 4½ on Mohs scale

Optical Data of ThorbastnäsiteHide

Type:
Uniaxial (+)
RI values:
nε = 1.670 - 1.678
Max Birefringence:
δ = 0.000
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of ThorbastnäsiteHide

Formula:
ThCa(CO3)2F2 · 3H2O

May contain minor REE.
Elements listed:
C, Ca, F, H, O, Th - search for minerals with similar chemistry

Type Occurrence of ThorbastnäsiteHide

Synonyms of ThorbastnäsiteHide

Other Language Names for ThorbastnäsiteHide

Relationship of Thorbastnäsite to other SpeciesHide

Member of:
Bastnäsite Group
Other Members of this group:
Bastnäsite-(Ce)Ce(CO3)FHex. 6 m2 : P6c2
Bastnäsite-(La)La(CO3)FHex.
Bastnäsite-(Nd)Nd(CO3)F Hex. 6 m2 : P62c
Bastnäsite-(Y)Y(CO3)FHex. 6 m2 : P62c
Hydroxylbastnäsite-(Ce)Ce(CO3)(OH)Hex. 6 : P6
Hydroxylbastnäsite-(Nd)Nd(CO3)(OH)Hex.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Röntgenite-(Ce)1 photo of Thorbastnäsite associated with Röntgenite-(Ce) on mindat.org.
Albite1 photo of Thorbastnäsite associated with Albite on mindat.org.
Donnayite Group1 photo of Thorbastnäsite associated with Donnayite Group on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.BD.05Cordylite-(Ce)NaBaCe2(CO3)4F Hex.
5.BD.05Lukechangite-(Ce)Na3Ce2(CO3)4FHex. 6mm : P63mc
5.BD.10Zhonghuacerite-(Ce)Ba2Ce(CO3)3FTrig.
5.BD.10Kukharenkoite-(Ce)Ba2Ce(CO3)3FMon. 2/m : P21/m
5.BD.10Kukharenkoite-(La)Ba2(La,Ce,Th)(CO3)3FMon. 2/m : P21/m
5.BD.15Cebaite-(Ce)Ba3Ce2(CO3)5F2
5.BD.15Cebaite-(Nd)Ba3(Nd,Ce)2(CO3)5F2Mon.
5.BD.18Arisite-(Ce)NaCe2(CO3)2[F2x(CO3)1-x]FHex. 6 m2 : P6m2
5.BD.18Arisite-(La)NaLa2(CO3)2[F2x(CO3)1-x]FHex. 6 m2 : P6m2
5.BD.20aBastnäsite-(Ce)Ce(CO3)FHex. 6 m2 : P6c2
5.BD.20aBastnäsite-(La)La(CO3)FHex.
5.BD.20aBastnäsite-(Y)Y(CO3)FHex. 6 m2 : P62c
5.BD.20aHydroxylbastnäsite-(Ce)Ce(CO3)(OH)Hex. 6 : P6
5.BD.20aHydroxylbastnäsite-(Nd)Nd(CO3)(OH)Hex.
5.BD.20aHydroxylbastnäsite-(La)(La,Nd,Ce)(CO3)(OH,F)Hex.
5.BD.20bParisite-(Ce)CaCe2(CO3)3F2Mon. m : Bb
5.BD.20bParisite-(Nd)Ca(Nd,Ce,La)2(CO3)3F2
5.BD.20dRöntgenite-(Ce)Ca2(Ce,La)3(CO3)5F3Trig. 3 : R3
5.BD.20cSynchysite-(Ce)CaCe(CO3)2FMon. 2/m : B2/b
5.BD.20cSynchysite-(Nd)CaNd(CO3)2F
5.BD.20cSynchysite-(Y)CaY(CO3)2FMon. 2/m : B2/b
5.BD.20aBastnäsite-(Nd)Nd(CO3)F Hex. 6 m2 : P62c
5.BD.25Horváthite-(Y)NaY(CO3)F2Orth. mmm (2/m 2/m 2/m) : Pmmn
5.BD.25Qaqarssukite-(Ce)Ba(Ce,REE)(CO3)2FTrig. 3 : P3
5.BD.35Huanghoite-(Ce)BaCe(CO3)2FTrig. 3m (3 2/m) : R3m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

12.1.1NorthupiteNa3Mg(CO3)2ClIso. m3 (2/m 3) : Fd3
12.1.2BarentsiteNa7Al(HCO3)2(CO3)2F4Tric.
12.1.3RouvilleiteNa3(Ca,Mn,Fe)2(CO3)3FMon. 2/m : B2/b
12.1.4ChlormagaluminiteMg4Al2(OH)12Cl2 · 3H2OHex.
12.1.5DeferniteCa6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x<0.5)Orth. mmm (2/m 2/m 2/m) : Pnma
12.1.6BrenkiteCa2(CO3)F2Orth.
12.1.7Stenonite(Sr,Ba,Na)2Al(CO3)F5Mon. 2/m
12.1.8Bastnäsite-(Ce)Ce(CO3)FHex. 6 m2 : P6c2
12.1.9Bastnäsite-(La)La(CO3)FHex.
12.1.10Bastnäsite-(Y)Y(CO3)FHex. 6 m2 : P62c
12.1.11Parisite-(Ce)CaCe2(CO3)3F2Mon. m : Bb
12.1.12Parisite-(Nd)Ca(Nd,Ce,La)2(CO3)3F2
12.1.13Synchysite-(Ce)CaCe(CO3)2FMon. 2/m : B2/b
12.1.14Synchysite-(Y)CaY(CO3)2FMon. 2/m : B2/b
12.1.15Synchysite-(Nd)CaNd(CO3)2F
12.1.16Röntgenite-(Ce)Ca2(Ce,La)3(CO3)5F3Trig. 3 : R3
12.1.17Cordylite-(Ce)NaBaCe2(CO3)4F Hex.
12.1.19Huanghoite-(Ce)BaCe(CO3)2FTrig. 3m (3 2/m) : R3m
12.1.20Zhonghuacerite-(Ce)Ba2Ce(CO3)3FTrig.
12.1.21Cebaite-(Ce)Ba3Ce2(CO3)5F2
12.1.23PhosgenitePb2CO3Cl2Tet. 4/mmm (4/m 2/m 2/m) : P4/mbm
12.1.24BarstowitePb4Cl6(CO3) · H2OMon. 2/m : P21/m
12.1.25AlbrechtschraufiteCa4Mg(UO2)2(CO3)6F2 · 17-18H2OTric. 1 : P1
12.1.26KettneriteCaBiCO3OFOrth. mmm (2/m 2/m 2/m)

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 ThorbastnäsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1965): 94(1): 105-113.
American Mineralogist (1965): 50: 1505.

Internet Links for ThorbastnäsiteHide

Localities for ThorbastnäsiteHide

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.
Argentina
 
  • San Luis
    • San Martín department
      • Las Chacras
Urbina Nilda, E., et al. "METALLOGENY OF THE SIERRAS PAMPEANAS OF SAN LUIS, ARGENTINA."
Lira, R., Viñas, N.A., Ripley, E.M. y Barbieri, M., 1999. El yacimiento de tierras raras, torio y uranio Rodeo de Los Molles, San Luis. En: Recursos Minerales de la República Argentina (Ed. E.O. Zappettini). Instituto de Geología y Recursos Minerales. SEGEMAR, Anales 35: 987-997.
Bolivia
 
  • Cochabamba
    • Ayopaya Province
Schultz, F., et al. (2004) Contrib. Mineral. Petrol., 148, 391-408
Schultz, F., et al. (2004) Contrib. Mineral. Petrol., 148, 391-408.
Brazil
 
  • Minas Gerais
    • Poços de Caldas alkaline complex
      • Poços de Caldas
Baretto & Fujimori (1986)
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
HORVÁTH, L. and HORVÁTH-PFENNINGER, E. (2000) Die Mineralien des Mont Saint-Hilaire. Lapis, 25, Nr. 7/8, 23-61 (in German).; HORVÁTH, L., PFENNINGER‑HORVÁTH, E. (2000) I minerali di Mont-Saint-Hilaire (Québec, Canada) Rivista Mineralogica Italiana, XXIV, 140-202 (in Italian with English summary).
    • Montréal
TARASSOFF, P., HORVÁTH, L. and PFENNINGER-HORVÁTH, E. (2006) Famous mineral localities: the Francon quarry, Montréal, Québec. Mineralogical Record, 37, 5-60.
Czech Republic
 
  • Central Bohemian Region
    • Zruč nad Sázavou (Srutsch an der Sasau)
GOLIÁŠ, V. (2002): Thoriová mineralizace Českého Masívu. – MS, dokt. práce, PřF UK Praha.
France
 
  • Auvergne-Rhône-Alpes
    • Loire
      • Bourg-Argental
        • Saint-Julien-Molin-Molette
Melle A., Meisser N. (2017) : Première occurrence française de thorbastnäsite. Le cahier des micromonteurs N° 138, p20
Italy
 
  • Sardinia
    • Cagliari metropolitan city (Metropolitan City of Cagliari)
      • Sarroch
Orlandi P., Gelosa M., Bonacina E., Caboni F., Mamberti M., Tanca G.A., Vinci A. (2015): Sette nuove specie mineralogiche della Sardegna. I minerali della mineralizzazione a molibdeno e bismuto di Su Seinargiu (CA). Riv. Mineral. Ital., 39, 2, 84-115.
  • Tuscany
    • Massa-Carrara Province
      • Apuan Alps
        • Massa
Orlandi, P. (2011): Zibaldone di mineralogia italiana 2010. Micro, 1/2011, 39-42
Russia (TL)
 
  • Tuva
    • Sangilen Upland
      • Balygtyg-Khem River
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
USA
 
  • New Mexico
    • Colfax Co.
      • Springer
        • Point of Rocks Mesa (Pecks Mesa)
Rocks & Min.:60:229.
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