Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Thomasclarkite-(Y)

Big Photo

Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
© 2005 DM

Show Thomasclarkite-(Y) Photos (18)
Formula:
(Na,Ce)(Y,REE)[(OH)
 
3
|HCO
 
3
] · 4H
 
2
O
System:MonoclinicColour:Honey-yellow to white
Lustre:VitreousHardness:2 - 3
Name:Named after Thomas Henry Clark (1893-1996), McGill University, Montreal, Quebec (Canada), noted for his studies of the geology of the St. Lawrence Lowlands.
This page provides mineralogical data about Thomasclarkite-(Y).

Classification of Thomasclarkite-(Y)

IMA status:Approved 1997
Strunz 8th edition ID:5/E.08-05
Nickel-Strunz 10th (pending) edition ID:5.DC.20

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
mindat.org URL:http://www.mindat.org/min-7336.html
Please feel free to link to this page.

Type Occurrence of Thomasclarkite-(Y)

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

Physical Properties of Thomasclarkite-(Y)

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Honey-yellow to white
Hardness (Mohs):2 - 3

Crystallography of Thomasclarkite-(Y)

Crystal System:Monoclinic

Optical Data of Thomasclarkite-(Y)

Type:Uniaxial (-)
RI values: nω = 1.540 nε = 1.400
Maximum Birefringence:δ = 0.140

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Thomasclarkite-(Y)

Formula:
(Na,Ce)(Y,REE)[(OH)
 
3
|HCO
 
3
] · 4H
 
2
O
Essential elements:C, H, Na, O, Y
All elements listed in formula:C, Ce, H, Na, O, Y

Relationship of Thomasclarkite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.DC.05Ancylite-(Ce)
SrCe[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Calcioancylite-(Ce)
(Ca,Sr)Ce(CO
 
3
)
 
2
OH·H
 
2
O
5.DC.05Calcioancylite-(Nd)
(Nd,Ce)
 
3
Ca(CO
 
3
)
 
4
(OH)
 
3
·H
 
2
O
5.DC.05Gysinite-(Nd)
Pb(Nd,La)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Ancylite-(La)
Sr(La,Ce)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Kozoite-(Nd)
(Nd,La,Sm,Pr)[OH|CO
 
3
]
5.DC.05Kozoite-(La)
(La,Nd)(CO
 
3
)(OH)
5.DC.10Kamphaugite-(Y)
Ca(Y,REE)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.15Sheldrickite
NaCa
 
3
(CO
 
3
)
 
2
F
 
3
·H
 
2
O
5.DC.25Peterbaylissite
(Hg-Hg)
 
1.5
[OH|CO
 
3
] · 2H
 
2
O
5.DC.30Clearcreekite
(Hg-Hg)
 
1.5
[OH|CO
 
3
] · 2H
 
2
O
5.DC.35Niveolanite
NaBe(CO
 
3
)(OH)·2H
 
2
O

Other Names for Thomasclarkite-(Y)

Synonyms:
IMA1997-047
Other Languages:
German:Thomasclarkit-(Y)
Russian:Томаскларкит-(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 Thomasclarkite-(Y)

Reference List:Canadian Mineralogist (1998): 36: 1293-1300.

Internet Links for Thomasclarkite-(Y)

Search Engines:
  • Look for Thomasclarkite-(Y) on Google
  • Look for Thomasclarkite-(Y) images on Google
    • External Links:
  • Look for Thomasclarkite-(Y) on Webmineral
  • Look for Thomasclarkite-(Y) on Athena Mineralogy
  • Look for Thomasclarkite-(Y) on Wikipedia
  • Look for Thomasclarkite-(Y) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Thomasclarkite-(Y) in the Natural History Museum (London) online catalogue
  • Thomasclarkite-(Y) details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Buy Fine Minerals from mineralsweb.com
  • Edwards Minerals - Fine Specimens
  • Top quality minerals from Kristalle of California
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy Minerals and Crystals from Crystalarium.com
  • Wendel Minerals - Auktion & Shop
  • Lapis Mineral Magazin
  • Find Thomasclarkite-(Y) on www.crystalclassics.co.uk
  • High-end worldwide specimens & outstanding customer service
  • Wilensky Fine Minerals
  • rare and unusual minerals mainly crystallized
  • Buy from David K Joyce minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Thomasclarkite-(Y)

    Hide Locality List
    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.
    (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. & Gault, R.A. (1998), Thomasclarkite-(Y), a new sodium-rare-earth-element bicarbonate mineral species from Mont Saint-Hilaire, Quebec. Canadian Mineralogist: 36: 1295-1301.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 7th Nov 2009 18:48:02