Qaqarssukite-(Ce)
A valid IMA mineral species
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About Qaqarssukite-(Ce)
Formula:
Ba(Ce,REE)(CO3)2F
Colour:
Yellow-brown (honey) to dark brown
Lustre:
Sub-Adamantine, Greasy
Hardness:
3 - 4
Specific Gravity:
4.64 (Calculated)
Crystal System:
Trigonal
Name:
Named for the Qaqarssuk carbonatite complex; the type locality. The suffix/modifier follows the Levinson rule for minerals with essential REE, indicating predominant cerium.
A polymorph of huanghoite-(Ce)
Unique Identifiers
Mindat ID:
27397
Long-form identifier:
mindat:1:1:27397:6
GUID
(UUID V4):
(UUID V4):
59eaeab7-4cf6-4817-bf00-9bb87b22351b
IMA Classification of Qaqarssukite-(Ce)
Approved
IMA Formula:
BaCe(CO3)2F
Approval year:
2004
First published:
2006
Classification of Qaqarssukite-(Ce)
5.BD.25
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Qq-Ce | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Qaqarssukite-(Ce)
Sub-Adamantine, Greasy
Transparency:
Translucent
Colour:
Yellow-brown (honey) to dark brown
Streak:
White
Hardness:
3 - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
4.64 g/cm3 (Calculated)
Optical Data of Qaqarssukite-(Ce)
Type:
Uniaxial (+)
RI values:
nω = 1.672(3) nε = 1.751(5)
Max Birefringence:
δ = 0.079
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Pleochroism:
Non-pleochroic
Chemistry of Qaqarssukite-(Ce)
Mindat Formula:
Ba(Ce,REE)(CO3)2F
Crystallography of Qaqarssukite-(Ce)
Crystal System:
Trigonal
Class (H-M):
3 - Pyramidal
Space Group:
P3
Cell Parameters:
a = 7.2097 Å, c = 18.187 Å
Ratio:
a:c = 1 : 2.523
Unit Cell V:
818.70 Ă
Âł (Calculated from Unit Cell)
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0006109 | Qaqarssukite-(Ce) | Grice J D, Gault R A, Rowe R, Johnsen O (2006) Qaqarssukite-(Ce), a new barium-cerium fluorcarbonate mineral species from Qaqarssuk, Greenland The Canadian Mineralogist 44 1137-1146 |  | 2006 | Qaqarssuk, Greenland | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.552 Ă | (43) |
| 3.674 Ă | (32) |
| 3.539 Ă | (41) |
| 3.351 Ă | (100) |
| 3.096 Ă | (40) |
| 2.571 Ă | (35) |
| 2.109 Ă | (39) |
| 2.080 Ă | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 36 : Carbonatites, kimberlites, and related igneous rocks |
Type Occurrence of Qaqarssukite-(Ce)
General Appearance of Type Material:
Individual, idiomorphic crystals to 50 ”m and complex aggregates up to 2 mm across, embedded in a sugary, fine- to medium-grained yellow-brown rock composed mainly of calcite and dolomite.
Place of Conservation of Type Material:
Canadian Museum of Nature, CMNMC 84398 and CMNMC 84399.
Geological Setting of Type Material:
Carbonatite complex.
Associated Minerals at Type Locality:
Reference:
Grice, J.D., Gault, R.A. & Rowe, R. (2006) Qaqarssukite-(Ce), a new barium-cerium fluorcarbonate mineral species from Qaqarssuk, Greenland. The Canadian Mineralogist: 44: 1137-1146.
Synonyms of Qaqarssukite-(Ce)
Other Language Names for Qaqarssukite-(Ce)
German:Qaqarssukit-(Ce)
Related Minerals - Strunz-mindat Grouping
| 5.BD. | Cordylite-(La) | (Na,Ca)Ba(La,Ce,Sr)2(CO3)4F |
| 5.BD.05 | Cordylite-(Ce) | NaBaCe2(CO3)4F |
| 5.BD.05 | Lukechangite-(Ce) | Na3Ce2(CO3)4F |
| 5.BD.05 | Unnamed (Cordylite-like (Ca0.5[]0.5)BaCe2[CO3]4F) | Caâ»Ba2Ce4[CO3]8F2 |
| 5.BD.10 | Zhonghuacerite-(Ce) | Ba2Ce(CO3)3F |
| 5.BD.10 | Kukharenkoite-(Ce) | Ba2Ce(CO3)3F |
| 5.BD.10 | Kukharenkoite-(La) | Ba2(La,Ce,Th)(CO3)3F |
| 5.BD.15 | Cebaite-(Ce) | Ba3Ce2(CO3)5F2 |
| 5.BD.15 | Cebaite-(Nd) | Ba3(Nd,Ce)2(CO3)5F2 |
| 5.BD.18 | Arisite-(Ce) | NaCe2(CO3)2[F2x(CO3)1-x]F |
| 5.BD.18 | Arisite-(La) | NaLa2(CO3)2[F2x(CO3)1-x]F |
| 5.BD.20a | BastnÀsite-(Ce) | Ce(CO3)F |
| 5.BD.20a | BastnÀsite-(La) | La(CO3)F |
| 5.BD.20a | BastnÀsite-(Y) | Y(CO3)F |
| 5.BD.20a | HydroxylbastnÀsite-(Ce) | Ce(CO3)(OH) |
| 5.BD.20a | HydroxylbastnÀsite-(Nd) | Nd(CO3)(OH) |
| 5.BD.20a | HydroxylbastnÀsite-(La) | (La,Nd,Ce)(CO3)(OH,F) |
| 5.BD.20b | Parisite-(Ce) | CaCe2(CO3)3F2 |
| 5.BD.20b | Parisite-(Nd) | Ca(Nd,Ce,La)2(CO3)3F2 |
| 5.BD.20d | Röntgenite-(Ce) | Ca2(Ce,La)3(CO3)5F3 |
| 5.BD.20c | Synchysite-(Ce) | CaCe(CO3)2F |
| 5.BD.20c | Synchysite-(Nd) | CaNd(CO3)2F |
| 5.BD.20c | Synchysite-(Y) | CaY(CO3)2F |
| 5.BD.20a | ThorbastnÀsite | ThCa(CO3)2F2 · 3H2O |
| 5.BD.20a | BastnÀsite-(Nd) | Nd(CO3)F |
| 5.BD.20c | Hydroxylsynchysite-(Ce) | Ca(Ce,La)(CO3)2(OH) |
| 5.BD.20c | Synchysite-(La) | Ca(La,Nd)(CO3)2F |
| 5.BD.20b | Parisite-(La) | CaLa2(CO3)3F2 |
| 5.BD.25 | HorvĂĄthite-(Y) | NaY(CO3)F2 |
| 5.BD.35 | Huanghoite-(Ce) | BaCe(CO3)2F |
| 5.BD.45 | Bayanoboite-(Y) | Ba2Y(CO3)2F3 |
Fluorescence of Qaqarssukite-(Ce)
No fluorescence in long- or short-wave ultraviolet light.
Other Information
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 Qaqarssukite-(Ce)
mindat.org URL:
https://www.mindat.org/min-27397.html
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References for Qaqarssukite-(Ce)
Reference List:
Localities for Qaqarssukite-(Ce)
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
Canada | |
| Dalsin (2013) +1 other reference |
| Nadeau et al. (2014) +2 other references |
Greenland | |
| Petersen et al. (2005) +1 other reference |
| Grice et al. (2006) |
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Qaqqaarsuk, Maniitsoq, Maniitsoq Island, Qeqqata, Greenland