Adamsite-(Y)
A valid IMA mineral species
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About Adamsite-(Y)
Formula:
NaY[CO3]2 · 6H2O
Colour:
Colourless, white, pale pink, pale purple.
Lustre:
Pearly
Hardness:
3
Specific Gravity:
2.27
Crystal System:
Triclinic
Name:
Named in honor of Professor Frank Dawson Adams (1859–1942), McGill University, Montreal, Canada, geologist and petrologist, who studied the Monteregian Hills, one of which is Mont Saint-Hilaire. The suffix/modifier indicates that the predominant essential REE is yttirum.
Chemically similar to shomiokite-(Y), lecoqite-(Y), and horváthite-(Y); also to thomasclarkite-(Y) (bicarbonate).
The structure is layered; one carbonate group is perpendicular, and the other parallel to the layering. In the crystal structure there are NaYCO3 groups separated by layers of H2O. The neighbouring water layers have only H-bond linkage, which results in perfect cleavage (Grice et al., 2000).
The structure is layered; one carbonate group is perpendicular, and the other parallel to the layering. In the crystal structure there are NaYCO3 groups separated by layers of H2O. The neighbouring water layers have only H-bond linkage, which results in perfect cleavage (Grice et al., 2000).
Unique Identifiers
Mindat ID:
7088
Long-form identifier:
mindat:1:1:7088:7
GUID
(UUID V4):
(UUID V4):
78278cbc-7ada-4c04-970f-a65e480cee57
IMA Classification of Adamsite-(Y)
Classification of Adamsite-(Y)
5.CC.30
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 IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Ads-Y | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Adamsite-(Y)
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Physical Properties of Adamsite-(Y)
Pearly
Transparency:
Transparent, Translucent
Colour:
Colourless, white, pale pink, pale purple.
Streak:
White
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {001}; good on {100}, {010}.
Perfect on {001}; good on {100}, {010}.
Density:
2.27(2) g/cm3 (Measured) 2.27 g/cm3 (Calculated)
Optical Data of Adamsite-(Y)
Type:
Biaxial (+)
RI values:
nα = 1.480 nβ = 1.498 nγ = 1.571
Max Birefringence:
δ = 0.091
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
Dispersion:
none
Optical Extinction:
Y = b; Z ∧ a = 14°.
Chemistry of Adamsite-(Y)
Mindat Formula:
NaY[CO3]2 · 6H2O
Common Impurities:
Gd,Nd,Yb,Sm,Ho
Crystallography of Adamsite-(Y)
Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 6.2592 Å, b = 13.0838 Å, c = 13.227 Å
α = 91.130°, β = 103.554°, γ = 90.188°
α = 91.130°, β = 103.554°, γ = 90.188°
Ratio:
a:b:c = 0.478 : 1 : 1.011
Unit Cell V:
1049.1 ų
Z:
4
Morphology:
Flat, acicular to fibrous crystals, up to 2.5 cm in length. Forming spherical groups of radiating crystals, more rarely reticulated groups. Elongated on [100] and flat on [001]. Forms observed are the pedions {010}, {010}, {001}, {001}, {100} and {100}.
Twinning:
By reflection on {001}, common.
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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2x2x2 | 3x3x3 | 4x4x4
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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) |
---|---|---|---|---|---|---|---|
0005703 | Adamsite-(Y) | Grice J D, Gault R A, Roberts A C, Cooper M A (2000) Adamsite-(Y), a new sodium-yttrium carbonate mineral species from The Canadian Mineralogist 38 1457-1466 | 2000 | Mont Saint-Hilaire, Quebec, Canada | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
12.81 Å | (100) |
6.45 Å | (70) |
4.456 Å | (60) |
4.291 Å | (60) |
2.571 Å | (60) |
2.050 Å | (50) |
2.869 Å | (30) |
Comments:
Mont Saint-Hilaire, Canada.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Adamsite-(Y)
General Appearance of Type Material:
Crystals are acicular to fibrous, to 2.5 cm, elongated along [100], flattened on [001], showing {010} and {001}; in spherical radiating groups, which rarely are reticulated.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Canada, numbers 82939 and 82940.
Geological Setting of Type Material:
A rare late-stage, low-temperature hydrothermal mineral in an alkalic pegmatite dike associated with an intrusive alkalic gabbro-syenite complex.
Associated Minerals at Type Locality:
Synonyms of Adamsite-(Y)
Other Language Names for Adamsite-(Y)
Common Associates
Associated Minerals Based on Photo Data:
21 photos of Adamsite-(Y) associated with Franconite | Na(Nb2O5)(OH) · 3H2O |
20 photos of Adamsite-(Y) associated with Thomasclarkite-(Y) | (Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O |
16 photos of Adamsite-(Y) associated with Shomiokite-(Y) | Na3Y[CO3]3 · 3H2O |
16 photos of Adamsite-(Y) associated with Rhodochrosite | MnCO3 |
16 photos of Adamsite-(Y) associated with Microcline | K(AlSi3O8) |
14 photos of Adamsite-(Y) associated with Aegirine | NaFe3+Si2O6 |
7 photos of Adamsite-(Y) associated with Synchysite-(Ce) | CaCe(CO3)2F |
6 photos of Adamsite-(Y) associated with Calcite | CaCO3 |
5 photos of Adamsite-(Y) associated with Albite | Na(AlSi3O8) |
5 photos of Adamsite-(Y) associated with Quartz | SiO2 |
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 | Bainbridgeite-(YCe) | Na2Ba2YCe(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.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 |
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 Adamsite-(Y)
mindat.org URL:
https://www.mindat.org/min-7088.html
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Please feel free to link to this page.
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References for Adamsite-(Y)
Localities for Adamsite-(Y)
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).
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.
All localities listed without proper references should be considered as questionable.
Canada (TL) | |
| Grice et al. (2000) |
Norway | |
| Husdal (2008) |
Russia | |
| Pavel.M. Kartashov (n.d.) |
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Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada