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Calcioancylite-(Nd)

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Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
© sergio varvello

Show Calcioancylite-(Nd) Photos (13)



Formula:
Ca(Nd,La,Ce)(CO
 
3
)
 
2
(OH)
 
.
H
 
2
O
System:MonoclinicHardness:4 - 4½
Member of:Ancylite Group
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)

IMA status:Approved
Nickel-Strunz 10th (pending) edition ID:5.DC.05

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
Dana 8th edition ID:16b.1.1.3

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1
Hey's CIM Ref.:11.8.12

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

Type Locality:Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Physical Properties of Calcioancylite-(Nd)

Hardness (Mohs):4 - 4½

Crystallography of Calcioancylite-(Nd)

Crystal System:Monoclinic
Class (H-M):m - Domatic
Space Group:Pm {P1 1m} {Pm} {P1m1}
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°
Maximum Birefringence:δ = 0.101

Chart 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)(CO
 
3
)
 
2
(OH)
 
.
H
 
2
O
Essential elements:C, Ca, H, Nd, O
All elements listed in formula:C, Ca, Ce, H, La, Nd, O

Relationship of Calcioancylite-(Nd) to other Species

Member of:Ancylite Group
Other Members of Group:

- +
Ancylite-(Ce)
SrCe(CO
 
3
)
 
2
(OH) · H
 
2
O
Ancylite-(La)
Sr(La,Ce)(CO
 
3
)
 
2
(OH) · H
 
2
O
Calcioancylite-(Ce)
(Ca,Sr)Ce(CO
 
3
)
 
2
(OH) · H
 
2
O
Kozoite-(La)
(La,Nd)(CO
 
3
)(OH)
Kozoite-(Nd)
(Nd,La,Sm,Pr)(CO
 
3
)(OH)
Related Minerals - Nickel-Strunz Grouping):

- +
5.DC.05Ancylite-(Ce)
SrCe(CO
 
3
)
 
2
(OH) · H
 
2
O
5.DC.05Calcioancylite-(Ce)
(Ca,Sr)Ce(CO
 
3
)
 
2
(OH) · H
 
2
O
5.DC.05Gysinite-(Nd)
Pb(Nd,La)(CO
 
3
)
 
2
(OH) · H
 
2
O
5.DC.05Ancylite-(La)
Sr(La,Ce)(CO
 
3
)
 
2
(OH) · H
 
2
O
5.DC.05Kozoite-(Nd)
(Nd,La,Sm,Pr)(CO
 
3
)(OH)
5.DC.05Kozoite-(La)
(La,Nd)(CO
 
3
)(OH)
5.DC.10Kamphaugite-(Y)
Ca(Y,REE)(CO
 
3
)
 
2
(OH) · H
 
2
O
5.DC.15Sheldrickite
NaCa
 
3
(CO
 
3
)
 
2
F
 
3
 · H
 
2
O
5.DC.20Thomasclarkite-(Y)
(Na,Ce)(Y,REE)(HCO
 
3
)(OH)
 
3
 · 4H
 
2
O
5.DC.25Peterbaylissite
(Hg
+
2
)
 
1.5
(CO
 
3
)(OH) · 2H
 
2
O
5.DC.30Clearcreekite
(Hg
+
2
)
 
1.5
(CO
 
3
)(OH) · 2H
 
2
O
5.DC.35Niveolanite
NaBe(CO
 
3
)(OH) · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
11.8.1Calkinsite-(Ce)
(Ce,La)
 
2
(CO
 
3
)
 
3
 · 4H
 
2
O
11.8.2Lanthanite-(La)
(La,Ce)
 
2
(CO
 
3
)
 
3
 · 8H
 
2
O
11.8.3Lanthanite-(Ce)
(Ce,La,Nd)
 
2
(CO
 
3
)
 
3
 · 8H
 
2
O
11.8.4Lanthanite-(Nd)
(Nd,La)
 
2
(CO
 
3
)
 
3
 · 8H
 
2
O
11.8.5Hydroxylbastnäsite-(Ce)
(Ce,La)(CO
 
3
)(OH,F)
11.8.6Hydroxylbastnäsite-(Nd)
(Nd,Ce,La)(CO
 
3
)(OH,F)
11.8.7Hydroxylbastnäsite-(La)
(La,Ce)(CO
 
3
)(F,OH)
11.8.8Remondite-(Ce)
Na
 
3
(Ce,La,Ca,Na,Sr)
 
3
(CO
 
3
)
 
5
11.8.9Tengerite-(Y)
Y
 
2
[CO
 
3
]
 
3
 · 2-3H
 
2
O
11.8.10Kimuraite-(Y)
Ca(Y,Nd)
 
2
(CO
 
3
)
 
4
 · 6H
 
2
O
11.8.11Lokkaite-(Y)
Ca(Y,Gd,Nd,Dy)
 
4
(CO
 
3
)
 
7
 · 9H
 
2
O
11.8.13Calcioancylite-(Ce)
(Ca,Sr)Ce(CO
 
3
)
 
2
(OH) · H
 
2
O
11.8.14Burbankite
(Na,Ca)
 
3
(Sr,Ba,Ce)
 
3
(CO
 
3
)
 
5
11.8.15Khanneshite
(Na,Ca)
 
3
(Ba,Sr,Ce,Ca)
 
3
(CO
 
3
)
 
5
11.8.16Donnayite-(Y)
Sr
 
3
NaCaY(CO
 
3
)
 
6
 · 3H
 
2
O
11.8.17Carbocernaite
(Ca,Na)(Sr,Ce,Ba)(CO
 
3
)
 
2
11.8.18Ancylite-(Ce)
SrCe(CO
 
3
)
 
2
(OH) · H
 
2
O
11.8.19Ewaldite
Ba(Ca,Y,Na,K)(CO
 
3
)
 
2
11.8.20Mckelveyite-(Y)
Ba
 
3
Na(Ca,U)Y(CO
 
3
)
 
6
 · 3H
 
2
O
11.8.21Sahamalite-(Ce)
(Mg,Fe)(Ce,La,Nd)
 
2
(CO
 
3
)
 
4

Other Names for Calcioancylite-(Nd)

Synonyms:
IMA1989-008
Other Languages:
Russian:Кальциоанкилит-(Nd)

Other Information

Other Information:Readily soluble in acids.
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 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)

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    • Localities for Calcioancylite-(Nd)

    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.
    Hide Locality List
    (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.
    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
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