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Thomasclarkite-(Y)

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About Thomasclarkite-(Y)Hide

08488540015057807822828.jpg
Thomas Henry Clark
Formula:
(Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O
Colour:
Honey-yellow to white
Lustre:
Vitreous
Hardness:
2 - 3
Crystal System:
Monoclinic
Name:
Named in honor of Thomas Henry Clark (1893-1996), Professor of Geology, 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)Hide

Approved
Approval Year:
1997
5.DC.20

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations

Physical Properties of Thomasclarkite-(Y)Hide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Honey-yellow to white
Hardness:
2 - 3 on Mohs scale

Optical Data of Thomasclarkite-(Y)Hide

Type:
Uniaxial (-)
RI values:
nω = 1.540 nε = 1.400
Max Birefringence:
δ = 0.140
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Thomasclarkite-(Y)Hide

Formula:
(Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O
IMA Formula:
NaY(HCO3)(OH)3 · 4H2O

Crystallography of Thomasclarkite-(Y)Hide

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
P2
Setting:
P2
Cell Parameters:
a = 4.556 Å, b = 13.018 Å, c = 4.556 Å
β = 90.15°
Ratio:
a:b:c = 0.35 : 1 : 0.35
Unit Cell V:
270.2 ų
Z:
1

Type Occurrence of Thomasclarkite-(Y)Hide

Synonyms of Thomasclarkite-(Y)Hide

Other Language Names for Thomasclarkite-(Y)Hide

Common AssociatesHide

Associated Minerals Based on Photo Data:
13 photos of Thomasclarkite-(Y) associated with FranconiteNa(Nb2O5)(OH) · 3H2O
8 photos of Thomasclarkite-(Y) associated with Adamsite-(Y)NaY[CO3]2 · 6H2O
7 photos of Thomasclarkite-(Y) associated with SideriteFeCO3
5 photos of Thomasclarkite-(Y) associated with ZirconZr(SiO4)
4 photos of Thomasclarkite-(Y) associated with Petersenite-(Ce)Na4(Ce,La,Nd)2(CO3)5
4 photos of Thomasclarkite-(Y) associated with AlbiteNa(AlSi3O8)
3 photos of Thomasclarkite-(Y) associated with AegirineNaFe3+Si2O6
2 photos of Thomasclarkite-(Y) associated with Shomiokite-(Y)Na3Y[CO3]3 · 3H2O
2 photos of Thomasclarkite-(Y) associated with NatroliteNa2Al2Si3O10 · 2H2O
2 photos of Thomasclarkite-(Y) associated with RutileTiO2

Related Minerals - Nickel-Strunz GroupingHide

5.DC.05Ancylite-(Ce)CeSr(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
5.DC.05Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)Orth. mmm (2/m 2/m 2/m)
5.DC.05Calcioancylite-(Nd)Ca(Nd,La,Ce)(CO3)2(OH).H2OMon. m : Pm
5.DC.05Gysinite-(Nd)PbNd(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
5.DC.05Ancylite-(La)LaSr(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
5.DC.05Kozoite-(Nd)(Nd,La,Sm,Pr)(CO3)(OH)Orth. mmm (2/m 2/m 2/m)
5.DC.05Kozoite-(La)(La,Nd)(CO3)(OH)Orth.
5.DC.10Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2OTet. 4 2 2 : P41 21 2
5.DC.15SheldrickiteNaCa3(CO3)2F3 · H2OTrig. 3 : P32
5.DC.25Peterbaylissite(Hg+2)1.5(CO3)(OH) · 2H2OOrth.
5.DC.30Clearcreekite(Hg+2)1.5(CO3)(OH) · 2H2OMon.
5.DC.35NiveolaniteNaBe(CO3)(OH) · 2H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mcc

Other InformationHide

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 Thomasclarkite-(Y)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
GRICE, J.D., and GAULT, R.A. (1998) Thomasclarkite (Y), a new sodium rare earth element bicarbonate mineral species from Mont Saint Hilaire, Quebec. Canadian Mineralogist, 36, 1293 1300.

Internet Links for Thomasclarkite-(Y)Hide

Localities for Thomasclarkite-(Y)Hide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada (TL)
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu 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.
Norway
 
  • Nordland
    • Narvik
Husdal, T. (2019) Nyfunn av mineraler fra Tysfjord-pegmatittene, Nordland. Norsk Mineralsymposium 2019: 31-46
 
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