Bainbridgeite-(YCe)
A valid IMA mineral species
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About Bainbridgeite-(YCe)
Formula:
Na2Ba2YCe(CO3)6 · 3H2O
Colour:
pale yellow to yellow, orange-yellow, orange, grey to almost black, bluish grey, green-grey, green, or even white
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.49 (Calculated)
Crystal System:
Triclinic
Member of:
Name:
Named in honour of Michael Bainbridge(born 1974), mineral photographer and collector, Canadian Museum of Nature collections staff from Ontario, Canada.
The Y analogue of bainbridgeite-(NdCe). The two, alongside with alicewilsonite-(YCe) and alicewilsonite-(YLa) are unique (status: 2023) in terms of site-structural separation of the rare earth element (REE) atoms.
Chemically similar to alicewilsonite-(YCe).
Chemically similar to alicewilsonite-(YCe).
Unique Identifiers
Mindat ID:
55253
Long-form identifier:
mindat:1:1:55253:6
GUID
(UUID V4):
(UUID V4):
d7bc38f7-6bc2-4925-8dee-7671e42a84db
IMA Classification of Bainbridgeite-(YCe)
Approved
Approval year:
2020
Type description reference:
Classification of Bainbridgeite-(YCe)
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)
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 |
|---|---|---|
| Bbg | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Bainbridgeite-(YCe)
Vitreous
Colour:
pale yellow to yellow, orange-yellow, orange, grey to almost black, bluish grey, green-grey, green, or even white
Comment:
Grey and black colours are most common
Streak:
white
Hardness:
3 on Mohs scale
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.49 g/cm3 (Calculated)
Optical Data of Bainbridgeite-(YCe)
Type:
Biaxial (+)
RI values:
nα = 1.572(2) nβ = 1.586(2) nγ = 1.628(2)
2V:
Measured: 48° (4), Calculated: 62°
Max Birefringence:
δ = 0.056
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
Chemistry of Bainbridgeite-(YCe)
Mindat Formula:
Na2Ba2YCe(CO3)6 · 3H2O
Crystallography of Bainbridgeite-(YCe)
Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 9.0874(4) Å, b = 9.0877(4) Å, c = 6.8826(3) Å
α = 102.912(4)°, β = 116.208(4)°, γ = 60.322(4)°
α = 102.912(4)°, β = 116.208(4)°, γ = 60.322(4)°
Ratio:
a:b:c = 1 : 1 : 0.757
Unit Cell V:
443.05 Ă
Âł (Calculated from Unit Cell)
Z:
1
Epitaxial Relationships of Bainbridgeite-(YCe)
Epitaxial Minerals:
| Alicewilsonite-(YCe) | Na2Sr2YCe(CO3)6 · 3H2O |
| Mckelveyite-(Y) | NaCaBa3Y(CO3)6 · 3H2O |
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.22 Ă | (4) |
| 4.43 Ă | (100) |
| 4.09 Ă | (37) |
| 3.263 Ă | (26) |
| 2.888 Ă | (67) |
| 2.633 Ă | (38) |
| 2.263 Ă | (23) |
| 2.010 Ă | (20) |
Comments:
From Type Description.
Type Occurrence of Bainbridgeite-(YCe)
General Appearance of Type Material:
crystals are hemimorphic pseudotrigonal and pseudohexagonal and show a wide range of habits, including platy, columnar, tabular, cone-shaped, barrel-shaped, saucer-shaped, and spindle-shaped (Fig. 1). The crystal faces are often curved, split, and/or stepped. They commonly form stacked or parallel growth aggregates, rosettes, and groups of radiating crystals. The crystals are usually less than 1âmm in size with some reaching 1.5â2âmm. Aggregates can reach 3âmm in size.
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Canada, catalogue number CMNMC 46324
Geological Setting of Type Material:
late-stage mineral found in hydrothermally altered alkaline pegmatites, miarolitic cavities in nepheline and sodalite syenite, and marble xenoliths at the Poudrette (Demix) quarry
Associated Minerals at Type Locality:
Synonyms of Bainbridgeite-(YCe)
Relationship of Bainbridgeite-(YCe) to other Species
Member of:
Other Members of this group:
| Alicewilsonite-(YCe) | Na2Sr2YCe(CO3)6 · 3H2O | Tric. 1 : P1 |
| Alicewilsonite-(YLa) | Na2Sr2YLa(CO3)6 · 3H2O | Tric. 1 : P1 |
| Bainbridgeite-(NdCe) | Na2Ba2NdCe(CO3)6 · 3H2O | Tric. 1 : P1 |
| Donnayite-(Y) | NaCaSr3Y(CO3)6 · 3H2O | Tric. 1 : P1 |
| Ewaldite | Ba(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2O | Hex. 6mm : P63mc |
| Mckelveyite-(Nd) | NaCaBa3Nd(CO3)6 · 3H2O | Mon. m : Bb |
| Mckelveyite-(Y) | NaCaBa3Y(CO3)6 · 3H2O | Tric. 1 : P1 |
| Weloganite | Na2Sr3Zr(CO3)6 · 3H2O | Tric. 1 : P1 |
Common Associates
Associated Minerals Based on Photo Data:
| 3 photos of Bainbridgeite-(YCe) associated with Alicewilsonite-(YCe) | Na2Sr2YCe(CO3)6 · 3H2O |
| 1 photo of Bainbridgeite-(YCe) associated with ThorbastnÀsite | ThCa(CO3)2F2 · 3H2O |
| 1 photo of Bainbridgeite-(YCe) associated with Analcime | Na(AlSi2O6) · H2O |
| 1 photo of Bainbridgeite-(YCe) associated with Sabinaite | Na4Zr2TiO4(CO3)4 |
Related Minerals - Strunz-mindat Grouping
| 5.CC. | Alicewilsonite-(YCe) | Na2Sr2YCe(CO3)6 · 3H2O |
| 5.CC. | Yuchuanite-(Y) | Y2(CO3)3 · H2O |
| 5.CC. | Bainbridgeite-(NdCe) | Na2Ba2NdCe(CO3)6 · 3H2O |
| 5.CC.05 | Donnayite-(Y) | NaCaSr3Y(CO3)6 · 3H2O |
| 5.CC.05 | Ewaldite | Ba(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2O |
| 5.CC.05 | Mckelveyite-(Nd) | NaCaBa3Nd(CO3)6 · 3H2O |
| 5.CC.05 | Mckelveyite-(Y) | NaCaBa3Y(CO3)6 · 3H2O |
| 5.CC.05 | Weloganite | Na2Sr3Zr(CO3)6 · 3H2O |
| 5.CC.05 | Unnamed (MSH UK-37A) | Sr3NaCaY(CO3)6 · 3H2O |
| 5.CC.05 | UM1992-05-CO:CaCeLaNaSr | (Sr,Na,Y,REE,Ca,Ba)2(CO3)2 · H2O |
| 5.CC.05 | Mckelveyite Group | A3B3(CO3)6 · 3H2O |
| 5.CC.05 | Alicewilsonite-(YLa) | Na2Sr2YLa(CO3)6 · 3H2O |
| 5.CC.10 | Tengerite-(Y) | Y2(CO3)3 · 2-3H2O |
| 5.CC.15 | Kimuraite-(Y) | Ca(Y,Nd)2(CO3)4 · 6H2O |
| 5.CC.15 | Lokkaite-(Y) | Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O |
| 5.CC.15 | Hizenite-(Y) | Ca2Y6(CO3)11 · 14H2O |
| 5.CC.20 | Shomiokite-(Y) | Na3Y[CO3]3 · 3H2O |
| 5.CC.25 | Calkinsite-(Ce) | (Ce,La)2(CO3)3 · 4H2O |
| 5.CC.25 | Lanthanite-(Ce) | (Ce,La,Nd)2(CO3)3 · 8H2O |
| 5.CC.25 | Lanthanite-(La) | (La,Ce)2(CO3)3 · 8H2O |
| 5.CC.25 | Lanthanite-(Nd) | (Nd,La)2(CO3)3 · 8H2O |
| 5.CC.30 | Adamsite-(Y) | NaY[CO3]2 · 6H2O |
| 5.CC.35 | Decrespignyite-(Y) | Cu(Y,REE)4(CO3)4(OH)5Cl · 2H2O |
| 5.CC.40 | Galgenbergite-(Ce) | Ca(Ce,La,Nd)2(CO3)4 · H2O |
| 5.CC.45 | Lecoqite-(Y) | Na3Y(CO3)3 · 6H2O |
Fluorescence of Bainbridgeite-(YCe)
The mineral is non-fluorescent under 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 Bainbridgeite-(YCe)
mindat.org URL:
https://www.mindat.org/min-55253.html
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References for Bainbridgeite-(YCe)
Localities for Bainbridgeite-(YCe)
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 (TL) | |
| Miyawaki et al. (2020) +1 other reference |
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Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada