UM1992-05-CO:CaCeLaNaSr
Valid as an unnamed mineral
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Formula:
(Sr,Na,Y,REE,Ca,Ba)2(CO3)2 · H2O
Specific Gravity:
3.44 (Calculated)
Crystal System:
Trigonal
Member of:
Polymorph of:
Although suggested to be a trigonal dimorph of donnayite-(Y), the chemistry differs.
Forms some transparent portions of up-to-3-mm crystals of triclinic donnayite-(Y); intergrown along (0001) with a porcellaneous grayish phase.
In the structure there is a disordered distribution of Na & REE, as opposed to the triclinic polymorph.
Forms some transparent portions of up-to-3-mm crystals of triclinic donnayite-(Y); intergrown along (0001) with a porcellaneous grayish phase.
In the structure there is a disordered distribution of Na & REE, as opposed to the triclinic polymorph.
Unique Identifiers
Mindat ID:
52130
Long-form identifier:
mindat:1:1:52130:5
GUID
(UUID V4):
(UUID V4):
db6fd361-7606-4415-a587-de8534c9953a
Classification of UM1992-05-CO:CaCeLaNaSr
IMA status notes:
Unnamed (probably valid)
5.CC.05
5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
Physical Properties of UM1992-05-CO:CaCeLaNaSr
Density:
3.44(3) g/cm3 (Calculated)
Optical Data of UM1992-05-CO:CaCeLaNaSr
Type:
Uniaxial (-)
RI values:
nω = 1.650 nε = 1.565
Max Birefringence:
δ = 0.085
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:
Moderate
Chemical Properties of UM1992-05-CO:CaCeLaNaSr
Formula:
(Sr,Na,Y,REE,Ca,Ba)2(CO3)2 · H2O
Crystallography of UM1992-05-CO:CaCeLaNaSr
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 5.211(1) Å, c = 18.357(7) Å
Ratio:
a:c = 1 : 3.523
Unit Cell V:
431.69 ų (Calculated from Unit Cell)
Z:
3
Relationship of UM1992-05-CO:CaCeLaNaSr to other Species
Member of:
Related Minerals - Strunz-mindat Grouping
| 5.CC. | Alicewilsonite-(YCe) | Na2Sr2YCe(CO3)6 · 3H2O | Tric. 1 : P1 |
| 5.CC. | Bainbridgeite-(YCe) | Na2Ba2YCe(CO3)6 · 3H2O | Tric. 1 : P1 |
| 5.CC. | Alicewilsonite-(YLa) | Na2Sr2YLa(CO3)6 · 3H2O | Tric. 1 : P1 |
| 5.CC. | Yuchuanite-(Y) | Y2(CO3)3 · H2O | Tric. 1 : P1 |
| 5.CC.05 | Donnayite-(Y) | NaCaSr3Y(CO3)6 · 3H2O | Tric. 1 : P1 |
| 5.CC.05 | Ewaldite | Ba(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2O | Hex. 6mm : P63mc |
| 5.CC.05 | Mckelveyite-(Nd) | (Ba,Sr)(Nd,Ce,La)(CO3)2 · 4-10H2O | Tric. |
| 5.CC.05 | Mckelveyite-(Y) | NaCaBa3Y(CO3)6 · 3H2O | Tric. 1 : P1 |
| 5.CC.05 | Weloganite | Na2Sr3Zr(CO3)6 · 3H2O | Tric. 1 : P1 |
| 5.CC.05 | Unnamed (MSH UK-37A) | Sr3NaCaY(CO3)6 · 3H2O | Hex. 6mm : P63mc |
| 5.CC.10 | Tengerite-(Y) | Y2(CO3)3 · 2-3H2O | Orth. mmm (2/m 2/m 2/m) : Pnnm |
| 5.CC.15 | Kimuraite-(Y) | Ca(Y,Nd)2(CO3)4 · 6H2O | Orth. |
| 5.CC.15 | Lokkaite-(Y) | Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O | Orth. |
| 5.CC.15 | Hizenite-(Y) | Ca2Y6(CO3)11 · 14H2O | Orth. |
| 5.CC.20 | Shomiokite-(Y) | Na3Y[CO3]3 · 3H2O | Orth. mm2 |
| 5.CC.25 | Calkinsite-(Ce) | (Ce,La)2(CO3)3 · 4H2O | Orth. |
| 5.CC.25 | Lanthanite-(Ce) | (Ce,La,Nd)2(CO3)3 · 8H2O | Orth. mmm (2/m 2/m 2/m) |
| 5.CC.25 | Lanthanite-(La) | (La,Ce)2(CO3)3 · 8H2O | Orth. mmm (2/m 2/m 2/m) |
| 5.CC.25 | Lanthanite-(Nd) | (Nd,La)2(CO3)3 · 8H2O | Orth. mmm (2/m 2/m 2/m) |
| 5.CC.30 | Adamsite-(Y) | NaY[CO3]2 · 6H2O | Tric. 1 : P1 |
| 5.CC.35 | Decrespignyite-(Y) | Cu(Y,REE)4(CO3)4(OH)5Cl · 2H2O | Mon. |
| 5.CC.40 | Galgenbergite-(Ce) | Ca(Ce,La,Nd)2(CO3)4 · H2O | Tric. 1 : P1 |
| 5.CC.45 | Lecoqite-(Y) | Na3Y(CO3)3 · 6H2O | Hex. 6 : P63 |
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.
References for UM1992-05-CO:CaCeLaNaSr
Reference List:
Localities for UM1992-05-CO:CaCeLaNaSr
ⓘ - 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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
- 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.
Russia | |
| Ching Tji Le Tjy, Pobedimskaya, E.A., Nadezhina, T.N., Khomyakov, A.P. (1992): Polymorphism of donnayite (Na,REE)Sr(CO3)2.H2O. Moscow University Geol. Bull.: 47(5): 60-70; in: Jambor, J.L., Puziewicz, J., Roberts, A.C., (1995): New mineral Names. American Mineralogist: 80(11-12): 1332 |
