Mindat Logo

Röntgenite-(Ce)

This page is currently not sponsored. Click here to sponsor this page.



Formula:
Ca
 
2
(Ce,La)
 
3
(CO
 
3
)
 
5
F
 
3
System:TrigonalColour:Yellow to brown, green
Hardness:
Name:
For Wilhelm Conrad Röntgen (1845-1923), German physicist, who discovered the X rays (Nobel prize in 1901)


Needs reinvestigation by modern methods.

Cf. parisite-(Ce), synchysite-(Y).

Classification of Röntgenite-(Ce)

IMA status:Approved 1987
Strunz 8th edition ID:5/C.07-90
Nickel-Strunz 10th (pending) edition ID:5.BD.20d

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
Dana 8th edition ID:16a.1.6.1

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)(XO3)Zq
Hey's CIM Ref.:12.1.16

12 : Carbonates with other anions
1 : Carbonates with halides
mindat.org URL:http://www.mindat.org/min-3429.html
Please feel free to link to this page.

Type Occurrence of Röntgenite-(Ce)

Type Locality:Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Occurrences of Röntgenite-(Ce)

Geological Setting:Pegmatites

Physical Properties of Röntgenite-(Ce)

Lustre:Waxy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Yellow to brown, green
Hardness (Mohs):
Fracture:Sub-Conchoidal
Density (calculated):4.19 g/cm3

Crystallography of Röntgenite-(Ce)

Crystal System:Trigonal
Class (H-M):3 - Pyramidal
Space Group:R3
Cell Parameters:a = 7.13(3) Å, c = 69.4(2) Å
Ratio:a:c = 1 : 9.734
Unit Cell Volume:V 3,055.41 ų (Calculated from Unit Cell)
Z:9
Morphology:Hexagonal
Twinning:On (0001), rare
X-Ray Powder Diffraction:
d-spacingIntensity
23.13 (100)
11.57 (70)
7.71 (13)
4.627 (44)
3.565 (49)
2.824 (48)
2.058 (15)
1.941 (16)
1.881 (18)
(
Comments:ICDD-PDF 35-579

Optical Data of Röntgenite-(Ce)

Type:Uniaxial (+)
RI values: nω = 1.658 - 1.662 nε = 1.756
Maximum Birefringence:δ = 0.098

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

Chemical Properties of Röntgenite-(Ce)

Formula:
Ca
 
2
(Ce,La)
 
3
(CO
 
3
)
 
5
F
 
3
Simplified for copy/paste:Ca2(Ce,La)3(CO3)5F3
Essential elements:C, Ca, Ce, F, O
All elements listed in formula:C, Ca, Ce, F, La, O

Relationship of Röntgenite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.BD.05Cordylite-(Ce)
NaBaCe
 
2
(CO
 
3
)
 
4
F
5.BD.05Lukechangite-(Ce)
Na
 
3
Ce
 
2
(CO
 
3
)
 
4
F
5.BD.10Zhonghuacerite-(Ce)
Ba
 
2
Ce(CO
 
3
)
 
3
F
5.BD.10Kukharenkoite-(Ce)
Ba
 
2
Ce(CO
 
3
)
 
3
F
5.BD.10Kukharenkoite-(La)
Ba
 
2
(La,Ce,Th)(CO
 
3
)
 
3
F
5.BD.15Cebaite-(Ce)
Ba
 
3
Ce
 
2
(CO
 
3
)
 
5
F
 
2
5.BD.15Cebaite-(Nd)
Ba
 
3
(Nd,Ce)
 
2
(CO
 
3
)
 
5
F
 
2
5.BD.18Arisite-(Ce)
NaCe
 
2
(CO
 
3
)
 
3-x
F
 
2x+1
5.BD.18Arisite-(La)
NaLa
 
2
(CO
 
3
)
 
3-x
F
 
2x+1
5.BD.20aBastnäsite-(Ce)
(Ce,La)(CO
 
3
)F
5.BD.20aBastnäsite-(La)
(La,Ce)(CO
 
3
)F
5.BD.20aBastnäsite-(Y)
(Y,Ce)(CO
 
3
)F
5.BD.20aHydroxylbastnäsite-(Ce)
(Ce,La)(CO
 
3
)(OH,F)
5.BD.20aHydroxylbastnäsite-(Nd)
(Nd,Ce,La)(CO
 
3
)(OH,F)
5.BD.20aHydroxylbastnäsite-(La)
(La,Nd,Ce)(CO
 
3
)(OH,F)
5.BD.20bParisite-(Ce)
Ca(Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
5.BD.20bParisite-(Nd)
Ca(Nd,Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
5.BD.20cSynchysite-(Ce)
Ca(Ce,La)(CO
 
3
)
 
2
F
5.BD.20cSynchysite-(Nd)
Ca(Nd,Y,Gd)(CO
 
3
)
 
2
F
5.BD.20cSynchysite-(Y)
Ca(Y,Ce)(CO
 
3
)
 
2
F
5.BD.20aThorbastnäsite
Th(Ca,Ce)(CO
 
3
)
 
2
F
 
2
· 3H
 
2
O
5.BD.20aBastnäsite-(Nd)
Nd(CO
 
3
)F
5.BD.25Horváthite-(Y)
NaY(CO
 
3
)F
 
2
5.BD.25Qaqarssukite-(Ce)
Ba(Ce,REE)(CO
 
3
)
 
2
F
5.BD.35Huanghoite-(Ce)
BaCe(CO
 
3
)
 
2
F
Related Minerals - Hey's Index Grouping:

- +
12.1.1Northupite
Na
 
3
Mg(CO
 
3
)
 
2
Cl
12.1.2Barentsite
Na
 
7
Al(HCO
 
3
)
 
2
(CO
 
3
)
 
2
F
 
4
12.1.3Rouvilleite
Na
 
3
(Ca,Mn,Fe)
 
2
(CO
 
3
)
 
3
F
12.1.4Chlormagaluminite
Mg
 
4
Al
 
2
(OH)
 
12
Cl
 
2
· 3H
 
2
O
12.1.5Defernite
Ca
 
6
(CO
 
3
)
 
2-x
(SiO
 
4
)
 
x
(OH)
 
7
(Cl,OH)
 
1-2x
(x<0.5)
12.1.6Brenkite
Ca
 
2
(CO
 
3
)F
 
2
12.1.7Stenonite
(Sr,Ba,Na)
 
2
Al(CO
 
3
)F
 
5
12.1.8Bastnäsite-(Ce)
(Ce,La)(CO
 
3
)F
12.1.9Bastnäsite-(La)
(La,Ce)(CO
 
3
)F
12.1.10Bastnäsite-(Y)
(Y,Ce)(CO
 
3
)F
12.1.11Parisite-(Ce)
Ca(Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
12.1.12Parisite-(Nd)
Ca(Nd,Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
12.1.13Synchysite-(Ce)
Ca(Ce,La)(CO
 
3
)
 
2
F
12.1.14Synchysite-(Y)
Ca(Y,Ce)(CO
 
3
)
 
2
F
12.1.15Synchysite-(Nd)
Ca(Nd,Y,Gd)(CO
 
3
)
 
2
F
12.1.17Cordylite-(Ce)
NaBaCe
 
2
(CO
 
3
)
 
4
F
12.1.19Huanghoite-(Ce)
BaCe(CO
 
3
)
 
2
F
12.1.20Zhonghuacerite-(Ce)
Ba
 
2
Ce(CO
 
3
)
 
3
F
12.1.21Cebaite-(Ce)
Ba
 
3
Ce
 
2
(CO
 
3
)
 
5
F
 
2
12.1.22Thorbastnäsite
Th(Ca,Ce)(CO
 
3
)
 
2
F
 
2
· 3H
 
2
O
12.1.23Phosgenite
Pb
 
2
CO
 
3
Cl
 
2
12.1.24Barstowite
Pb
 
4
Cl
 
6
(CO
 
3
) · H
 
2
O
12.1.25Albrechtschraufite
Ca
 
4
Mg(UO
 
2
)
 
2
(CO
 
3
)
 
6
F
 
2
· 17-18H
 
2
O
12.1.26Kettnerite
CaBiCO
 
3
OF

Other Names for Röntgenite-(Ce)

Other Languages:
German:Röntgenit-(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 Röntgenite-(Ce)

Reference List:

- +
American Mineralogist (1953): 38: 392, 868-870, 932-963.

Yunxiang, Ni, John M. Hughes, and Anthony N. Mariano (1993) The atomic arrangement of bastnäsite-(Ce), Ce(CO3)F, and structural elements of synchysite-(Ce), röntgenite-(Ce), and parisite-(Ce). American Mineralogist: 78: 415-418.

Internet Links for Röntgenite-(Ce)

Search Engines:
  • Look for Röntgenite-(Ce) on Google
  • Look for Röntgenite-(Ce) images on Google
  • External Links:
  • Look for Röntgenite-(Ce) on Webmineral
  • Look for Röntgenite-(Ce) on Athena Mineralogy
  • Look for Röntgenite-(Ce) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Röntgenite-(Ce) details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Lapis Mineral Magazin
  • Röntgenite-(Ce) specimens for sale - minfind.com
  • Top quality minerals from Kristalle of California
  • Buy fine minerals and gemstones from Pala International
  • Wilensky Fine Minerals
  • The Arkenstone - Fine Minerals
  • SpiriferMinerals.com - high quality low prices
  • Buy RARE Minerals from Rocks of Africa
  • Rare and Unusual minerals at Mineralogical Research Company
  • Fabre Minerals - search for Röntgenite-(Ce) specimens
  • Fine and rare minerals from mintreasure.com
  • Buy minerals from YourMineralCollection
  • Localities for Röntgenite-(Ce)

    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
     
    • Ontario
      • Thunder Bay District
    McLaughlin (1990)
    • Québec
      • Montérégie
        • La Vallée-du-Richelieu RCM
          • Mont Saint-Hilaire
    No reference listed
    China
     
    • Inner Mongolia Autonomous Region
      • Baotou League (Baotou Prefecture)
        • Bayan Obo Mining District
          • Bayan Obo
            • Bayan Obo deposit (Bayun-Obo deposit; Baiyunebo deposit)
    Pavel M. Kartashov data
    • Sichuan Province
      • Liangshan Autonomous Prefecture
        • Mianning Co.
    Anthony, J.W. et al.: Handbook of Mineralogy
    France
     
    • Auvergne
      • Haute-Loire
        • Langeac
          • Marsanges
    PERINET F. (2014) - Minéraux des terres rares de Marsanges (Haute Loire). Le Cahier des Micromonteurs N° 123 pp. 18-22
    • Brittany
      • Finistère
        • Guilligomarc'h
    analysed at CNRS Nantes
      • Morbihan
        • Grand-Champ
    Pierre le Roc'h collection (analyzed by Yves Lulzac, BRGM Nantes, end May 2009)
    Greenland
     
    • Kujalleq
      • Narsaq
        • Igaliku (Igaliko)
          • Narsaarsuk Plateau
    G. Donnay: Amer. Mineral. 38:868-870 (1953)
    Mongolia
     
    • Dornogovi Aimag
      • Hövsgöl
    Kynický, J. & Samec, P. (2005): Hydrothermally-metasomatic and exsolution-like mineralization of the carbonatites from selected localities at Gobi. Mongolian Geoscientist. sv. 9, č. 27, s. 52-55.
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
        • Khaldzan Buragtag massif
    Pavel M. Kartashov analytical data (2012), specimens selfcollected in 1990
    Romania
     
    • Harghita Co.
      • Ditrău (Ditró)
    Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
    Russia
     
    • Eastern-Siberian Region
      • Sakha Republic (Saha Republic; Yakutia)
        • Polar Yakutia
    Pavel M. Kartashov analytical data
    Slovakia
     
    • Banská Bystrica Region
      • Rimavská Sobota Co.
        • Tisovec
    Ondrejka M., Uher P., Pršek J., Ozdín D., 2007: Arsenian monazite-(Ce) and xenotime-(Y), REE arsenates and carbonates from the Tisovec-Rejkovo rhyolite, Western Carpathians, Slovakia: Composition and substitutions in the (REE,Y)XO4 system (X = P, As, Si, Nb, S). Lithos, 95, 116-129.
    South Korea
     
    • Chungcheongbukdo (Chungchong-pukto)
      • Chungju (Chung Won Kum; Chung-ju)
        • Joongwon-gun
          • Mt. Eorae
    P.M. Kartashov data
    USA
     
    • Massachusetts
      • Norfolk Co.
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
    • New Hampshire
      • Carroll Co.
        • Conway
          • Redstone
    Caruso, Louis; Simmons, Gene (1985). Uranium and microcracks in a 1,000-meter core, Redstone, New Hampshire (Contributions to Mineralogy and Petrology, Volume 90, Issue 1, pp.1-17)
    • Virginia
      • Augusta Co.
        • Parnassus
    http://csmres.jmu.edu/geollab/baedke/dept/abs2002.pdf.
    Mineral and/or Locality  
    Search Google  
    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: November 20, 2014 08:47:43
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds