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Calcioancylite-(Nd)

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Formula:
Ca(Nd,La,Ce)(CO3)2(OH).H2O
System:
Monoclinic
Hardness:
4 - 4½
Member of:
Name:
From the Greek αγκυλός ("ankylos") for "curved", in allusion to its usually rounded and distorted crystal shapes, and the prefix "CALCIO-" in allusion to its composition with CALCIum dominant over strontium, plus the "-(Nd)" suffix due to neodymium being the dominant REE.
The neodymium analogue of Calcioancylite-(Ce).

Classification of Calcioancylite-(Nd)

Approved
5.DC.05

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
16b.1.1.3

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1
11.8.12

11 : Carbonates
8 : Carbonates of the rare earths
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Type Occurrence of Calcioancylite-(Nd)

Physical Properties of Calcioancylite-(Nd)

Hardness (Mohs):
4 - 4½

Crystallography of Calcioancylite-(Nd)

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Pm
Cell Parameters:
a = 7.212(2) Å, b = 4.976(2) Å, c = 8.468(2) Å
β = 90.04(3)°
Ratio:
a:b:c = 1.449 : 1 : 1.702
Unit Cell Volume:
V 303.89 ų (Calculated from Unit Cell)
Z:
1
Comment:
Pseudo-orthorhombic

Optical Data of Calcioancylite-(Nd)

Type:
Biaxial (-)
RI values:
nα = 1.660 nβ = 1.725 nγ = 1.761
2V:
Measured: 70° to 74°, Calculated: 70°
Max Birefringence:
δ = 0.101
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak

Chemical Properties of Calcioancylite-(Nd)

Formula:
Ca(Nd,La,Ce)(CO3)2(OH).H2O
Essential elements:
All elements listed in formula:

Relationship of Calcioancylite-(Nd) to other Species

Member of:
Other Members of Group:
Ancylite-(Ce)SrCe(CO3)2(OH) · H2O
Ancylite-(La)Sr(La,Ce)(CO3)2(OH) · H2O
Calcioancylite-(Ce)(Ca,Sr)Ce(CO3)2(OH) · H2O
Kozoite-(La)(La,Nd)(CO3)(OH)
Kozoite-(Nd)(Nd,La,Sm,Pr)(CO3)(OH)
5.DC.05Ancylite-(Ce)SrCe(CO3)2(OH) · H2O
5.DC.05Calcioancylite-(Ce)(Ca,Sr)Ce(CO3)2(OH) · H2O
5.DC.05Gysinite-(Nd)Pb(Nd,La)(CO3)2(OH) · H2O
5.DC.05Ancylite-(La)Sr(La,Ce)(CO3)2(OH) · H2O
5.DC.05Kozoite-(Nd)(Nd,La,Sm,Pr)(CO3)(OH)
5.DC.05Kozoite-(La)(La,Nd)(CO3)(OH)
5.DC.10Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2O
5.DC.15SheldrickiteNaCa3(CO3)2F3 · H2O
5.DC.20Thomasclarkite-(Y)(Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O
5.DC.25Peterbaylissite(Hg2+)1.5(CO3)(OH) · 2H2O
5.DC.30Clearcreekite(Hg2+)1.5(CO3)(OH) · 2H2O
5.DC.35NiveolaniteNaBe(CO3)(OH) · 2H2O
11.8.1Calkinsite-(Ce)(Ce,La)2(CO3)3 · 4H2O
11.8.2Lanthanite-(La)(La,Ce)2(CO3)3 · 8H2O
11.8.3Lanthanite-(Ce)(Ce,La,Nd)2(CO3)3 · 8H2O
11.8.4Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2O
11.8.5Hydroxylbastnäsite-(Ce)(Ce,La)(CO3)(OH,F)
11.8.6Hydroxylbastnäsite-(Nd)(Nd,Ce,La)(CO3)(OH,F)
11.8.7Hydroxylbastnäsite-(La)(La,Nd,Ce)(CO3)(OH,F)
11.8.8Rémondite-(Ce)Na3(Ce,La,Ca,Na,Sr)3(CO3)5
11.8.9Tengerite-(Y)Y2(CO3)3 · 2-3H2O
11.8.10Kimuraite-(Y)Ca(Y,Nd)2(CO3)4 · 6H2O
11.8.11Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
11.8.13Calcioancylite-(Ce)(Ca,Sr)Ce(CO3)2(OH) · H2O
11.8.14Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
11.8.15Khanneshite(Na,Ca)3(Ba,Sr,Ce,Ca)3(CO3)5
11.8.16Donnayite-(Y)NaCaSr3Y(CO3)6 · 3H2O
11.8.17Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
11.8.18Ancylite-(Ce)SrCe(CO3)2(OH) · H2O
11.8.19EwalditeBa(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2O
11.8.20Mckelveyite-(Y)NaCaBa3Y(CO3)6 · 3H2O
11.8.21Sahamalite-(Ce)(Mg,Fe)(Ce,La,Nd)2(CO3)4

Other Names for Calcioancylite-(Nd)

Name in Other Languages:

Other Information

Other Information:
Readily soluble in acids.
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 Calcioancylite-(Nd)

Reference List:
European Journal of Mineralogy (1990): 2: 413-418.

American Mineralogist 76 (1991), 1729.

New Mins. (1997), New Minerals 1990-1994.

American Mineralogist 84 (1999), 1466.

Internet Links for Calcioancylite-(Nd)

Localities for Calcioancylite-(Nd)

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Australia
 
  • South Australia
    • Olary Province
      • Yunta
Brugger, J., Ogierman, J., Pring, A., Waldron, H., Kolitsch, U. (2006): Origin of the secondary REE-minerals at the Paratoo copper deposit near Yunta, South Australia. Mineralogical Magazine, 70, 609-627.
Italy
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Baveno
        • Feriolo
Albertini, C.,Demartin, F., Guastoni, A. (2006): R.M.I. 240-243
        • Oltrefiume
          • Mount Camoscio
Orlandi P., Pasero M., Vezzalini G.(1990): Calcio-ancylite-(Nd), a new REE-carbonate from Baveno, Italy. Eur. J. Mineral., 2, 413-418.
Norway
 
  • Nordland
    • Tysfjord
Husdal, T. (2009): Ancylittmineraler i Norge. Norsk Bergverksmuseum Skrift 41, 33 - 42
Switzerland
 
  • Wallis (Valais)
    • Le Trient Valley
      • Finhaut
Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
Mineral and/or Locality  
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