Calcioancylite-(Ce)
A valid IMA mineral species - grandfathered
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About Calcioancylite-(Ce)
Formula:
(Ce,Ca,Sr)CO3(OH,H2O)
Colour:
Colourless, white, pale pink, pink, grey
Lustre:
Vitreous, Greasy
Hardness:
4 - 4½
Crystal System:
Orthorhombic
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 "-(Ce)" suffix due to cerium being the dominant REE.
The calcium analogue of ancylite-(Ce).
The cerium analogue of calcioancylite-(Nd) and calcioancylite-(La).
Note: The precise type locality is unknown - the mineral was found at an unspecified place in "Western Lands" (Western Russia or possibly Finland) in a glacial erratic boulder of unknown source; for details and discussion see Pekov (1998).
The cerium analogue of calcioancylite-(Nd) and calcioancylite-(La).
Note: The precise type locality is unknown - the mineral was found at an unspecified place in "Western Lands" (Western Russia or possibly Finland) in a glacial erratic boulder of unknown source; for details and discussion see Pekov (1998).
Unique Identifiers
Mindat ID:
855
Long-form identifier:
mindat:1:1:855:8
Similar Names
| Calcioancylite | A synonym | |
| Calcioancylite-(La) | A valid IMA mineral species | (LaCa)(CO3)2(OH) · H2O |
| Calcioancylite-(Nd) | A valid IMA mineral species | Ca(Nd,La,Ce)(CO3)2(OH).H2O |
IMA Classification of Calcioancylite-(Ce)
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
(Ce,Ca,Sr)(CO3)(OH,H2O)
Classification of Calcioancylite-(Ce)
5.DC.05
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
16b.1.1.2
16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1
16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZq
11.8.13
11 : Carbonates
8 : Carbonates of the rare earths
11 : Carbonates
8 : Carbonates of the rare earths
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Canc-Ce | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Calcioancylite-(Ce)
Vitreous, Greasy
Transparency:
Translucent
Colour:
Colourless, white, pale pink, pink, grey
Hardness:
4 - 4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Splintery
Optical Data of Calcioancylite-(Ce)
Type:
Biaxial (-)
RI values:
nα = 1.654 nβ = 1.733 nγ = 1.772
2V:
Measured: 60° to 70°, Calculated: 66°
Max. Birefringence:
δ = 0.118
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r < v
Chemistry of Calcioancylite-(Ce)
Mindat Formula:
(Ce,Ca,Sr)CO3(OH,H2O)
Element Weights:
Chemical Analysis
Oxide wt%:
| 1 | 2 | |
|---|---|---|
| CaO | 7.55 % | 6.38 % |
| SrO | 0.25 % | 1.96 % |
| La2O3 | 21.85 % | 14.34 % |
| Ce2O3 | 31.07 % | 29.67 % |
| Pr2O3 | 2.67 % | 0.24 % |
| Nd2O3 | 7.64 % | 9.64 % |
| Sm2O3 | 0.21 % | 0.65 % |
| F | 0.72 % | |
| -O=F2 | -0.30 % | |
| BaO | 0.85 % | |
| Total: | 71.66 % | 63.73 % |
Sample references:
Crystallography of Calcioancylite-(Ce)
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 5.0095(1) Å, b = 8.5006(1) Å, c = 7.2670(1) Å
Ratio:
a:b:c = 0.589 : 1 : 0.855
Unit Cell V:
309.46 ų
Comment:
Space group Pmcn (non-standard setting).
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.54 Å | (30) |
| 4.32 Å | (75) |
| 3.66 Å | (40) |
| 2.94 Å | (100) |
| 2.33 Å | (45) |
| 2.07 Å | (35) |
| 2.00 Å | (30) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Synonyms of Calcioancylite-(Ce)
Calcioancylite (in part)
Other Language Names for Calcioancylite-(Ce)
Dutch:Calcioancyliet-(Ce)
German:Calcioankylit-(Ce)
Norwegian:Kalsiumankylitt
Russian:Кальциоанкилит-(Ce)
Relationship of Calcioancylite-(Ce) to other Species
Member of:
Other Members of Ancylite Group:
| Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Ancylite-(La) | LaSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Calcioancylite-(La) | (LaCa)(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Calcioancylite-(Nd) | Ca(Nd,La,Ce)(CO3)2(OH).H2O | Mon. m : Pm |
| Gysinite-(Ce) | PbCe(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Gysinite-(La) | PbLa(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Gysinite-(Nd) | PbNd(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
Forms a series with:
Common Associates
Associations Based on Photo Data:
| 18 photos of Calcioancylite-(Ce) associated with Calcite | CaCO3 |
| 18 photos of Calcioancylite-(Ce) associated with Perovskite | CaTiO3 |
| 11 photos of Calcioancylite-(Ce) associated with Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| 9 photos of Calcioancylite-(Ce) associated with Titanite | CaTi(SiO4)O |
| 8 photos of Calcioancylite-(Ce) associated with Aegirine | NaFe3+Si2O6 |
| 5 photos of Calcioancylite-(Ce) associated with Microcline | K(AlSi3O8) |
| 4 photos of Calcioancylite-(Ce) associated with Micheelsenite | (Ca2Y)Al(PO3OH)(CO3)(OH)6 · 12H2O |
| 4 photos of Calcioancylite-(Ce) associated with Fluorite | CaF2 |
| 3 photos of Calcioancylite-(Ce) associated with Bastnäsite-(Ce) | Ce(CO3)F |
| 3 photos of Calcioancylite-(Ce) associated with 'Rémondite' |
Related Minerals - Strunz-mindat Grouping
| 5.DC. | Gysinite-(Ce) | PbCe(CO3)2(OH) · H2O |
| 5.DC. | Calcioancylite-(La) | (LaCa)(CO3)2(OH) · H2O |
| 5.DC. | Gysinite-(La) | PbLa(CO3)2(OH) · H2O |
| 5.DC.05 | Kozoite-(La) | La(CO3)(OH) |
| 5.DC.05 | Calcioancylite-(Nd) | Ca(Nd,La,Ce)(CO3)2(OH).H2O |
| 5.DC.05 | 'Unnamed (Ce-analogue of Kozoite-(La) and -(Nd))' | (Ce,La)(CO3)(OH) |
| 5.DC.05 | Ancylite-(La) | LaSr(CO3)2(OH) · H2O |
| 5.DC.05 | Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
| 5.DC.05 | Kozoite-(Nd) | Nd(CO3)(OH) |
| 5.DC.05 | Gysinite-(Nd) | PbNd(CO3)2(OH) · H2O |
| 5.DC.10 | Kamphaugite-(Y) | Ca(Y,REE)(CO3)2(OH) · H2O |
| 5.DC.15 | Sheldrickite | NaCa3(CO3)2F3 · H2O |
| 5.DC.20 | Thomasclarkite-(Y) | (Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O |
| 5.DC.25 | Peterbaylissite | [Hg2]2+3[CO3]2(OH)2 · 4H2O |
| 5.DC.30 | Clearcreekite | [Hg2]2+3[CO3]2(OH)2 · 4H2O |
| 5.DC.35 | Niveolanite | NaBe(CO3)(OH) · 2H2O |
Other Information
Notes:
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.
Internet Links for Calcioancylite-(Ce)
mindat.org URL:
https://www.mindat.org/min-855.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Calcioancylite-(Ce)
Reference List:
Nickel, Ernest H., Mandarino, Joseph A. (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature. American Mineralogist, 72 (9-10) 1031-1042 (Appendix 2)
Pekov, I. V.; Petersen, O. V.; Voloshin, A. V. (1997) Calcio-ancylite-(Ce) from Ilímaussaq and Narssârssuk, Greenland, Kola peninsula and Polar Urals, Russia; ancylite-(Ce)-calcio-ancylite-(Ce) an isomorphous series. Neues Jahrbuch für Mineralogie - Abhandlungen, 171 (3). 309-322 doi:10.1127/njma/171/1997/309
Larsen, A.O.; Gault, R.A. (2002) Calcio-ancylite-(Ce) from syenite pegmatite at Tvedalen, Oslo Region, Norway. Neues Jahrbuch für Mineralogie - Monatshefte, 2002 (9). 411-423 doi:10.1127/0028-3649/2002/2002-0411
Belovitskaya, Yu. V.; Pekov, I. V.; Gobechiya, E. R.; Kabalov, Yu. K. (2013) Refinement of the crystal structure of calcioancylite-(Ce) by the Rietveld method. Crystallography Reports, 58 (2). 216-219 doi:10.1134/s1063774513020053(English translation of original publication in Kristallografiya (2013): 58 (2), 197-200)
Localities for Calcioancylite-(Ce)
Showing 63 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Angola | |
| Gonçalves +1 other reference |
Austria | |
| Mineralogical Society of America - ... |
| Walter F. (1983) | |
Belgium | |
| Van Der Meersche (2005) +2 other references |
Brazil | |
| Horváth |
| Horváth | |
Canada | |
| Hogarth (1997) |
| Reiner Mielke 2016 |
| Belovitskaya et al. (2013) +1 other reference |
China | |
| Wang et al. (2023) |
| Qu et al. (2025) |
Czech Republic | |
| GOLIÁŠ (2002) |
Finland | |
| Al-Ani et al. (2013) |
| Al Ani Thair and Torppa Akseli 2011. ... |
| Al-Ani Thair |
Germany | |
| Marko Burkhardt Collection |
| Mineralogical Society of America - ... |
Greenland | |
| Pekov et al. (1997) +1 other reference |
| Petersen (2001) | |
| Pekov et al. (1997) +1 other reference |
Hungary | |
| www.geomania.hu |
| www.geomania.hu +1 other reference | |
Italy | |
| Piccoli et al. (2007) |
| Grill (1935) |
| Orlandi (1999) +1 other reference | |
| Gamboni et al. (1997) |
| Identification with UK Id. Service of ... |
Namibia | |
| Uwe Kolitsch and Hans Vidar Ellingsen (SXRD + SEM-EDS) +2 other references |
Norway | |
| Husdal (2009) |
| Husdal (2009) | |
| Markus Aas Reime |
| Zhou et al. (2026) |
| Husdal (2023) | |
| Husdal (2008) |
| Husdal (2008) | |
| Husdal et al. (2017) |
| Husdal (2009) |
| Husdal (2009) |
| - (n.d.) |
| Husdal (2009) |
| Andresen (2011) |
| Larsen et al. (2010) |
| Berge (1993) +1 other reference | |
| Larsen et al. (2002) +1 other reference | |
| Peter Andresen collection | |
Romania | |
| Hirtopanu (2006) |
Russia | |
| Murzin et al. (2018) |
| Kasatkin et al. (2020) |
| Savel’eva et al. (2008) |
| Lemanski (n.d.) |
| Pekov et al. (1997) +2 other references |
| Belovitskaya et al. (2013) | |
| И.И. et al. (2023) |
| Pekov et al. (1997) +1 other reference |
| Palache et al. (1951) | |
| Pekov (1998) | |
Slovenia | |
| Hinterlechner-Ravnik et al. (1995) +1 other reference |
Tajikistan | |
| www.koeln.netsurf.de (1999) |
UK | |
| Hubbard et al. (2008) |
USA | |
| Chakhmouradian et al. (2002) |
| www.nysam.org |
| Nelen et al. (1987) |
| Mineralogical Society of America - ... |
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Guisachan Quarry, Tomich, North， West and Central Sutherland, Highland, Scotland, UK