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Adamsite-(Y)

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Big Photo

Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
© Stephan Wolfsried

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Formula:
NaY[CO
 
3
]
 
2
 · 6H
 
2
O
System:TriclinicColour:Colourless, white, pale ...
Lustre:PearlyHardness:3
Name:Named after 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.


Crystals are acicular to fibrous, to 2.5 cm, elongated along [001], flattened on {001}, showing {010} and {001}; in spherical radiating groups, which rarely are reticulated.

Classification of Adamsite-(Y)

IMA status:Approved 1999
Strunz 8th edition ID:5/D.03-02
Strunz 9th edition ID:5.CC.30
Nickel-Strunz 10th (pending) edition ID:5.CC.30

5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
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Type Occurrence of Adamsite-(Y)

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
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:
Thomasclarkite-(Y)RhodochrositePetersenite-(Ce)Horváthite-(Y)Donnayite-(Y)

Physical Properties of Adamsite-(Y)

Lustre:Pearly
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colourless, white, pale pink, pale purple.
Streak:White
Hardness (Mohs):3
Tenacity:Brittle
Cleavage:Perfect
Perfect on {001}; good on {100}, {010}.

Crystallography of Adamsite-(Y)

Crystal System:Triclinic

Optical Data of Adamsite-(Y)

Type:Biaxial (+)
RI values: nα = 1.480 nβ = 1.498 nγ = 1.571
Maximum Birefringence:δ = 0.091

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:none

Chemical Properties of Adamsite-(Y)

Formula:
NaY[CO
 
3
]
 
2
 · 6H
 
2
O
Essential elements:C, H, Na, O, Y
All elements listed in formula:C, H, Na, O, Y

Relationship of Adamsite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.CC.05Donnayite-(Y)
NaCaSr
 
3
Y(CO
 
3
)
 
6
 · 3H
 
2
O
5.CC.05Ewaldite
Ba(Ca,Y,Na,K)(CO
 
3
)
 
2
5.CC.05Mckelveyite-(Nd)
(Ba,Sr)(Nd,Ce,La)(CO
 
3
)
 
2
 · 4-10H
 
2
O
5.CC.05Mckelveyite-(Y)
NaCaBa
 
3
Y(CO
 
3
)
 
6
 · 3H
 
2
O
5.CC.05Weloganite
Na
 
2
Sr
 
3
Zr(CO
 
3
)
 
6
 · 3H
 
2
O
5.CC.10Tengerite-(Y)
Y
 
2
(CO
 
3
)
 
3
 · 2-3H
 
2
O
5.CC.15Kimuraite-(Y)
Ca(Y,Nd)
 
2
(CO
 
3
)
 
4
 · 6H
 
2
O
5.CC.15Lokkaite-(Y)
Ca(Y,Gd,Nd,Dy)
 
4
(CO
 
3
)
 
7
 · 9H
 
2
O
5.CC.20Shomiokite-(Y)
Na
 
3
Y[CO
 
3
]
 
3
 · 3H
 
2
O
5.CC.25Calkinsite-(Ce)
(Ce,La)
 
2
(CO
 
3
)
 
3
 · 4H
 
2
O
5.CC.25Lanthanite-(Ce)
(Ce,La,Nd)
 
2
(CO
 
3
)
 
3
 · 8H
 
2
O
5.CC.25Lanthanite-(La)
(La,Ce)
 
2
(CO
 
3
)
 
3
 · 8H
 
2
O
5.CC.25Lanthanite-(Nd)
(Nd,La)
 
2
(CO
 
3
)
 
3
 · 8H
 
2
O
5.CC.35Decrespignyite-(Y)
Cu(Y,REE)
 
4
(CO
 
3
)
 
4
(OH)
 
5
Cl · 2H
 
2
O
5.CC.40Galgenbergite-(Ce)
Ca(Ce,La,Nd)
 
2
(CO
 
3
)
 
4
 · H
 
2
O

Other Names for Adamsite-(Y)

Synonyms:
IMA1999-020
Other Languages:
Czech:Adamsit-(Y)
German:Adamsit-(Y)
Italian:Adamsite-(Y)
Latvian:Adamsīts-(Y)
Russian:Адамсит-(Y)

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Adamsite-(Y)

Reference List:

- +
GRICE, J.D., and GAULT, R.A., ROBERTS, A.C., and COOPER, M.A. (2000) Adamsite-(Y), a new sodium-yttrium carbonate mineral species from Mont Saint-Hilaire, Quebec. Canadian Mineralogist, 38, 1457-1466.

Internet Links for Adamsite-(Y)

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    • Localities for Adamsite-(Y)

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		GRICE, J.D., and GAULT, R.A., ROBERTS, A.C., and COOPER, M.A. (2000) Adamsite-(Y), a new sodium-yttrium carbonate mineral species from Mont Saint-Hilaire, Quebec. Canadian Mineralogist, 38, 1457-1466.
    Norway
     
    • Nordland
      • Tysfjord
    		Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Lovozero Massif
            • Alluaiv Mt
              • Umbozero mine (Umba mine)
    		P.M. Kartashov data
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