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Tuperssuatsiaite

Formula:
Na
 
2
Fe
 
3
Si
 
8
O
 
20
(OH)
 
2
·4H
 
2
O
System:MonoclinicColour:Golden-yellow, reddish ...
Name:Named after its discovery locality, Tuperssuatsiait Bay, Illimaussaq complex, Narsaq municipality, Greenland.


Palygorskite Group.

At least two visually similar, isomrphous species are known (Cámara et al., 2002).

Classification of Tuperssuatsiaite

IMA status:Approved 1984
Strunz 8th edition ID:8/H.33-10
Nickel-Strunz 10th (pending) edition ID:9.EE.20

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
Dana 7th edition ID:74.3.1.2
Dana 8th edition ID:74.3.1a.2

74 : PHYLLOSILICATES Modulated Layers
3 : Modulated Layers with joined strips
Hey's CIM Ref.:14.20.5

14 : Silicates not Containing Aluminum
20 : Silicates of Fe and alkali metals
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Type Occurrence of Tuperssuatsiaite

Type Locality:Tuperssuatsiat Bay, Ilimaussaq complex, Narsaq, Kitaa (West Greenland) Province, Greenland
Year of Discovery:1984

Physical Properties of Tuperssuatsiaite

Lustre:Silky, Dull
Diaphaneity (Transparency):Transparent
Colour:Golden-yellow, reddish brown, orange-yellow
Streak:Brownish Yellow
Cleavage:Distinct/Good
Good on the {100}
Fracture:Conchoidal
Density (measured):2.465 g/cm3
Density (calculated):2.12 g/cm3

Crystallography of Tuperssuatsiaite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m (B1 1 2/m) [C2/m] {C1 2/m 1}
Cell Parameters:a = 13.72Å, b = 18Å, c = 4.82Å
β = 104.28°
Ratio:a:b:c = 0.762 : 1 : 0.268
Unit Cell Volume:V 1280.91 ų
Z:2

Optical Data of Tuperssuatsiaite

Type:Biaxial (+)
RI values: nα = 1.539 nβ = 1.560 nγ = 1.595
2V:Measured: 103° to 103°, Calculated: 78°
Maximum Birefringence:δ = 0.056

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

Chemical Properties of Tuperssuatsiaite

Formula:
Na
 
2
Fe
 
3
Si
 
8
O
 
20
(OH)
 
2
·4H
 
2
O
Essential elements:Fe, H, Na, O, Si
All elements listed in formula:Fe, H, Na, O, Si
Common Impurities:K,Mg,Ca,Mn,Zn,Al,Ti,F,Cl

Relationship of Tuperssuatsiaite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.EE.05Bementite
Mn
 
5
Si
 
4
O
 
10
(OH)
 
6
9.EE.10Brokenhillite
9.EE.10Pyrosmalite-(Fe)
(Fe,Mn)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Friedelite
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Pyrosmalite-(Mn)
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Mcgillite
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH)
 
8
Cl
 
2
9.EE.15Nelenite
(Mn,Fe)
 
16
Si
 
12
As
 
3
O
 
36
(OH)
 
17
9.EE.15Schallerite
(Mn,Fe)
 
16
Si
 
12
As
 
3
O
 
36
(OH)
 
17
9.EE.20Palygorskite
(Mg,Al)
 
5
(Si,Al)
 
8
O
 
20
(OH)
 
2
·8H
 
2
O
9.EE.20Yofortierite
Mn
 
5
Si
 
8
O
 
20
(OH)
 
2
·8-9H
 
2
O
9.EE.25Falcondoite
(Ni,Mg)
 
4
Si
 
6
O
 
15
(OH)
 
2
·6H
 
2
O
9.EE.25Loughlinite
Na
 
2
Mg
 
3
Si
 
6
O
 
16
·8H
 
2
O
9.EE.25Sepiolite
Mg
 
4
Si
 
6
O
 
15
(OH)
 
2
·6H
 
2
O
9.EE.25Kalifersite
(K,Na)
 
5
Fe
3+
7
Si
 
20
O
 
50
(OH)
 
6
·12H
 
2
O
9.EE.30Gyrolite
Ca
 
4
(Si
 
6
O
 
15
)(OH)
 
2
·3H
 
2
O
9.EE.30Orlymanite
Ca
 
4
Mn
 
3
Si
 
8
O
 
20
(OH)
 
6
·2H
 
2
O
9.EE.30Tungusite
Ca
 
4
Fe
 
2
Si
 
6
O
 
15
(OH)
 
6
9.EE.35Fedorite
KNa
 
4
Ca
 
4
[HSi
 
4
O
 
10
]
 
4
· 6H
 
2
O
9.EE.35Minehillite
(K,Na)
 
2-3
Ca
 
28
Zn
 
4
Al
 
4
Si
 
40
O
 
112
(OH)
 
16
9.EE.35Reyerite
(Na,K)
 
2
Ca
 
14
(Si,Al)
 
24
O
 
58
(OH)
 
8
·6H
 
2
O
9.EE.35Truscottite
(Ca,Mn)
 
14
Si
 
24
O
 
58
(OH)
 
8
·2H
 
2
O
9.EE.35Martinite
(Na,Ca)
 
11
Ca
 
4
(Si,S,B)
 
14
B
 
2
O
 
40
F
 
2
·4H
 
2
O
9.EE.35Lalondeite
(Na,Ca)
 
6
(Ca,Na)
 
3
Si
 
16
O
 
38
(F,OH)
 
2
·3H
 
2
O
9.EE.40Natrosilite
Na
 
2
Si
 
2
O
 
5
9.EE.45Makatite
Na
 
2
Si
 
4
O
 
8
(OH)
 
2
·4H
 
2
O
9.EE.50Varennesite
Na
 
8
Mn
 
2
Si
 
10
O
 
25
(OH,Cl)
 
2
·12H
 
2
O
9.EE.55Raite
(Na,Ca)
 
4
(Mn,Ti,Fe)
 
3
Si
 
8
O
 
16
(OH)
 
12
·5H
 
2
O
9.EE.60Intersilite
Na
 
6
Mn
2+
 
Ti[Si
 
10
O
 
24
(OH)](OH)
 
3
·4H
 
2
O
9.EE.65Shafranovskite
(Na,K)
 
6
(Mn,Fe)
 
3
Si
 
9
O
 
24
·6H
 
2
O
9.EE.65Zakharovite
Na
 
4
Mn
 
5
Si
 
10
O
 
24
(OH)
 
6
·6H
 
2
O
9.EE.70Zeophyllite
Ca
 
4
Si
 
3
O
 
8
(OH,F)
 
4
·2H
 
2
O
Related Minerals - Hey's Index Grouping:
14.20.1Emeleusite
Li
 
2
Na
 
4
Fe
 
2
Si
 
12
O
 
30
14.20.2Aegirine
NaFe
3+
 
[Si
 
2
O
 
6
]
14.20.4Wilkinsonite
Na
 
2
Fe
2+
4
Fe
3+
2
[O
 
2
|Si
 
6
O
 
18
]
14.20.6Riebeckite
[ ][Na
 
2
][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|Si
 
8
O
 
22
]
14.20.7 Ferri-annite
14.20.8Fenaksite
(K,Na)
 
4
(Fe,Mn)
 
2
(Si
 
4
O
 
10
)
 
2
(OH,F)
14.20.9Montdorite
(K,Na)
 
2
(Fe
2+
 
,Mn
2+
 
,Mg)
 
5
[(OH,F)
 
2
|Si
 
4
O
 
10
]
 
2

Other Names for Tuperssuatsiaite

Synonyms:
IMA1984-002Tuperssvatsiaite
German names:
TuperssuatsiaitTuperssvatsiait
Russian names:
Туперссуатсиаит
Spanish names:
TuperssuatsiaitaTuperssvatsiaita

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 Tuperssuatsiaite

Reference List:Neues Jahrbuch für Mineralogie, Monatshefte (1984): 501-512.

American Mineralogist (1985): 70: 1332.

American Mineralogist (1992): 77: 1308.

Mineralogical Record (1998): 29: 109.

Cámara, F., Garvie, L. A. J., Devouard, B., Groy, T. L. and Buseck, P. R. (2002): The structure of Mn-rich tuperssuatsiaite: A palygorskite-related mineral. Am. Mineral. 87, 1458-1463.

Internet Links for Tuperssuatsiaite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Tuperssuatsiaite in the Natural History Museum (London) online catalogue
  • Tuperssuatsiaite details from Handbook of Mineralogy (PDF)
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    Localities for Tuperssuatsiaite

    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.
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    (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.
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Poços de Caldas
    Atencio, D. , Coutinho, J.M.V. and Vlach, S.R.F. (2005). "Tuperssuatsiaite from the Bortolan quarry, Poços de Caldas, Minas Gerais, Brazil." The Mineralogical Record, 36(3),pp:275-280.
    Canada
     
    • Québec
      • Rouville Co.
        • Mont Saint-Hilaire
    No reference listed
      • Verchères Co.
        • Varennes & St-Amable
          • Saint-Amable sill
    Mineralogical Record: 29: 83.
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Ilimaussaq complex
          • Kangerdluarssuq (Kangerdluarsuk) Firth
    Lapis 2003(1), 50
    Min Rec 36:3 pp275-280
    Min Rec 36:3 pp275-280
    Namibia
     
    • Khomas Region
      • Windhoek District
        • Windhoek
          • Aris
    von Knorring, O., Petersen, O. V. Karup-Moeller, S., Leonardsen, E. S. and Condliffe, E. (1992): Tuperssuatsiaite, from Aris phonolite, Windhoek, Namibia. Neues Jahrbuch für Mineralogie Monatsh., 1992, 145-152.; Min Rec 36:3 pp275-280; Cámara, F., Garvie, L. A. J., Devouard, B., Groy, T. L. and Buseck, P. R. (2002): The structure of Mn-rich tuperssuatsiaite: A palygorskite-related mineral. Am. Mineral. 87, 1458-1463; [http://www.koeln.netsurf.de/~w.steffens/aris.htm]
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    www.koeln.netsurf.de/~w.steffens/lovo.htm
    Mineral and/or Locality
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