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Narsarsukite

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Formula:
Na
 
4
(Ti,Fe)
 
2
[Si
 
8
O
 
20
](O,OH,F)
 
2
System:TetragonalHardness:7


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Classification of Narsarsukite

IMA status:Approved
Strunz 8th edition ID:8/F.34-10
Nickel-Strunz 10th (pending) edition ID:9.DJ.05

9 : SILICATES (Germanates)
D : Inosilicates
J : Inosilicates with 4-periodic double and triple chains
Dana 8th edition ID:70.1.2.1

70 : INOSILICATES Column or Tube Structures
1 : Column or Tube Structures with columnar silicate units
Hey's CIM Ref.:17.1.29

17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
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Type Occurrence of Narsarsukite

Type Locality:Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland
Year of Discovery:1900

Physical Properties of Narsarsukite

Hardness (Mohs):7

Crystallography of Narsarsukite

Crystal System:Tetragonal
Cell Parameters:a = 10.72Å, c = 7.95Å
Ratio:a:c = 1 : 0.742
Unit Cell Volume:V 913.60 ų (Calculated from Unit Cell)
Crystal Atlas:
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Narsarsukite no.1 - Goldschmidt (1913-1926)
Narsarsukite no.2 - Goldschmidt (1913-1926)
Narsarsukite no.3 - Goldschmidt (1913-1926)

About Crystal Atlas

The mindat.org Crystal Atlas allows you to view a selection of crystal drawings of real and idealised crystal forms for this mineral and, in certain cases, 3d rotating crystal objects. The 3d models and HTML5 code are kindly provided by www.smorf.nl.

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Optical Data of Narsarsukite

Type:Uniaxial (+)
RI values: nω = 1.609 nε = 1.630
Maximum Birefringence:δ = 0.021

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

Chemical Properties of Narsarsukite

Formula:
Na
 
4
(Ti,Fe)
 
2
[Si
 
8
O
 
20
](O,OH,F)
 
2
Simplified for copy/paste:Na4(Ti,Fe)2[Si8O20](O,OH,F)2
Essential elements:Na, O, Si, Ti
All elements listed in formula:F, Fe, H, Na, O, Si, Ti

Relationship of Narsarsukite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DJ.10Laplandite-(Ce)
Na
 
4
CeTiPO
 
4
Si
 
7
O
 
18
· 5H
 
2
O
9.DJ.15Caysichite-(Y)
Ca
 
2
Y
 
2
Si
 
4
O
 
10
(CO
 
3
)
 
3
· 4H
 
2
O
9.DJ.20Seidite-(Ce)
Na
 
4
(Ce,Sr)
 
2
Ti[(O,OH,F)
 
5
|Si
 
8
O
 
18
(OH)] · 5H
 
2
O
9.DJ.25Carlosturanite
(Mg,Fe,Ti)
 
21
(Si,Al)
 
12
O
 
28
(OH)
 
34
•H
 
2
O
9.DJ.30Jonesite
Ba
 
4
(K,Na)
 
2
Ti
 
4
Al
 
2
(Si
 
3
O
 
9
)
 
2
(SiO
 
4
)
 
4
O
 
2
· 6H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
17.1.1Hectorite
Na
 
0.3
(Mg,Li)
 
3
(Si
 
4
O
 
10
)(F,OH)
 
2
17.1.3Agrellite
NaCa
 
2
Si
 
4
O
 
10
F
17.1.4Fluorapophyllite-(Na)
NaCa
 
4
(Si
 
8
O
 
20
)F · 8H
 
2
O
17.1.5Fluorapophyllite-(K)
KCa
 
4
(Si
 
8
O
 
20
)(F,OH) · 8H
 
2
O
17.1.6Hydroxyapophyllite-(K)
KCa
 
4
(Si
 
8
O
 
20
)(OH,F) · 8H
 
2
O
17.1.7Hsianghualite
Ca
 
3
Li
 
2
(Be
 
3
Si
 
3
O
 
12
)F
 
2
17.1.8Leucophanite
NaCaBeSi
 
2
O
 
6
F
17.1.9Norbergite
Mg
 
3
(SiO
 
4
)(F,OH)
 
2
17.1.10Chondrodite
(Mg,Fe
2+
 
)
 
5
(SiO
 
4
)
 
2
(F,OH)
 
2
17.1.11Humite
(Mg,Fe
2+
 
)
 
7
(SiO
 
4
)
 
3
(F,OH)
 
2
17.1.12Clinohumite
Mg
 
9
(SiO
 
4
)
 
4
F
 
2
17.1.13Canasite
K
 
2
Na
 
4
Ca
 
5
(Si
 
12
O
 
30
(OH,F)
 
4
17.1.14Charoite
(K,Sr)
 
15-16
(Ca,Na)
 
32
[Si
 
6
O
 
11
(O,OH)
 
6
]
 
2
[Si
 
12
O
 
18
(O,OH)
 
12
]
 
2
[Si
 
17
O
 
25
(O,OH)
 
18
]
 
2
(OH,F)
 
4
· ~3H
 
2
O
17.1.15Cuspidine
Ca
 
4
(Si
 
2
O
 
7
)(F,OH)
 
2
17.1.16Bultfonteinite
Ca
 
2
(HSiO
 
4
)F · H
 
2
O
17.1.17Zeophyllite
Ca
 
13
(Si
 
10
O
 
28
)F
 
10
· 6H
 
2
O
17.1.18Rowlandite-(Y)
(Y,Ce)
 
4
Fe
2+
 
(Si
 
2
O
 
7
)
 
2
F
 
2
(?)
17.1.19Yuksporite
(K,Ba)NaCa
 
2
(Si,Ti)
 
4
O
 
11
(F,OH) · H
 
2
O
17.1.20Yftisite-(Y)
(Y,Dy,Er)
 
4
(Ti,Sn)(SiO
 
4
)
 
2
O(F,OH)
 
6
17.1.21Mosandrite
(◻,Ca,Na)
 
3
(Ca,REE)
 
4
Ti(Si
 
2
O
 
7
)
 
2
[H
 
2
O,OH,F]
 
4
· H
 
2
O
17.1.22Hiortdahlite
(Ca,Na)
 
3
(Zr,Ti)(Si
 
2
O
 
7
)(O,OH,F)
 
2
17.1.23Burpalite
Na
 
2
CaZr(Si
 
2
O
 
7
)F
 
2
17.1.24Seidozerite
Na
 
8
Mn
2+
2
Zr
 
3
Ti
 
3
(Si
 
2
O
 
7
)
 
4
O
 
4
F
 
4
17.1.25Thorosteenstrupine
CaMnThSi
 
4
O
 
11
(OH)F · 6H
 
2
O
17.1.26Zircophyllite
(K,Na)
 
3
(Mn,Fe
2+
 
)
 
7
(Zr,Ti)
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
17.1.27Jinshajiangite
BaNaFe
2+
4
Ti
 
2
(Si
 
2
O
 
7
)
 
2
O
 
2
(OH)
 
2
F
17.1.28Rosenbuschite
(Ca,Na)
 
3
(Zr,Ti)(Si
 
2
O
 
7
)OF
17.1.30Sonolite
Mn
2+
9
(SiO
 
4
)
 
4
(OH,F)
 
2

Other Names for Narsarsukite

Synonyms:
GoureiteUnnamed (MSH UK-2)
Other Languages:
German:Goureit
Narsarsukit
Russian:Нарсарсукит
Spanish:Goureita
Narsarsukita

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 Narsarsukite

Reference List:

- +
FLINK, G. (1899) Part I. On the minerals from Narsarsuk on the Firth of Tunugdliarfik in Southern Greenland. 8-180, In: FLINK, G., BØGGILD, O.B., and WINTHER, C. (1901) Undersøgelser af Mineraler fra Julianehaab indsamlet af G. Flink 1897, Part II. On some minerals from the Nepheline-Syenite at Julianehaab, Greenland (Epistolite, Britholite, Schizolite and Steenstrupite) Meddelelser om Grønland, 24, 1-213.
PEACOR, D.R., and BUERGER, M.J. (1962) The determination and refinement of narsarsukite, Na2TiOSi4O10. American Mineralogist, 47, 539 556.
PYATENKO, Yu.A., and PUDOVKINA, Z.V. (1961) Crystal structure of narsarsukite. Soviet Physics Crystallography, 5, 540 548.
RAJASEKARAN, K.C. (1966) Narsarsukite from Mont St. Hilaire, Quebec, Canada. Canadian Mineralogist, 8, 506 514.
HORVÁTH, L., and GAULT, R.G. (1990) The mineralogy of Mont Saint Hilaire. Mineralogical Record, 21, 284 359.
Kartashov P M (1994) Narsarsukite from fenitized rocks of Lovozero massif, Zapiski Vserossijskogo Mineralogicheskogo Obshchestva 123, issue 4, 58-66
Kolitsch, U. and Tillmanns, E. (2004): The structural relation between the new synthetic silicate K2ScFSi4O10 and narsarsukite, Na2(Ti,Fe3+)(O,F)Si4O10. Eur. J. Mineral. 16, 143-149. [includes brief data on structure refinement of natural sample]

Internet Links for Narsarsukite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Narsarsukite details from Handbook of Mineralogy (PDF)
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    Localities for Narsarsukite

    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.
    Brazil
     
    • Paraná
      • Tijucas do Sul
        • Morro Redondo complex
    Vilalva, F.C.J., and Vlach, S.R.F. (2010): Mineralogical Magazine 74(4), 645-658
    Canada
     
    • Québec
      • Montérégie
        • La Vallée-du-Richelieu RCM
          • Mont Saint-Hilaire
    Rajasekaran, K.C. (1966), Narsarsukite from Mont St. Hilaire, Quebec, Canada. Canadian Mineralogist: 8: 506-514; Chao, G.Y. (1967), Leucophanite, elpidite, narsarsukite from the Desourdy quarry, Mont St. Hilaire, Quebec. Canadian Mineralogist: 9: 286-87; Falls R.B.(1983), Elpidite and narsarsukite from Mont Saint-Hilaire, Quebec. B.S. Thesis, University of Toronto, Canada.
      • Nord-du-Québec
        • Nunavik
    BIRKETT, T.C., MILLER, R.R., ROBERTS, A.C., & MARIANO, A.N. (1992) Zirconium bearing minerals from the Strange Lake intrusive complex, Quebec Labrador. Canadian Mineralogist, 30, 191-205.
    • Québec & Newfoundland and Labrador
    http://www.koeln.netsurf.de/~w.steffens/can.htm; Canadian Mineralogist Vol. 34, pp.349-371 (1996); A. Kerr and H. Rafuse (2012) Rare-earth element (REE) geochemistry of the Strange Lake deposits: Implications for resource estimation and metallogenic models. Newfoundland and Labrador Department of Natural Resources Current Research 2012 pp39-60
    Germany
     
    • Rhineland-Palatinate
      • Eifel
        • Mayen
          • Ettringen
            • Bellerberg volcano
    [Hentschel, G., Neue Mineralfunde aus dem Laacher Vulkangebiet, Mainzer geowiss. Mitt. 9, 121–125, 1980] [Lapis, 15 (5), 9-36]
    Greenland
     
    • Kujalleq
      • Narsaq
        • Igaliku (Igaliko)
          • Narsaarsuk Plateau
    Meddr Gronland,(1899) 24, p. 154; Bøgghild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3., C.A. Reitzels Forlag, Copenhagen. 445 p (p.318-319)
    Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
    Upton, B.J.G. , Hill, P.G., Jefferies, B.,Ford and Macdonald, R. (1976): Narsarsukite: A New Occurrence in Peralkaline Trachyte, South Greenland. Mineralogical Magazine. 40 : 737-746.
    • Tunu Province (East Greenland)
    http://www.koeln.netsurf.de/~w.steffens/green.htm
    Kazakhstan
     
    • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
      • Tarbagatai Range
        • Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts)
    Pavel M. Kartashov data
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    P.M. Kartashov data
    Namibia
     
    • Khomas Region
      • Windhoek District
        • Aris
    Robin Tibbit collection (SXRD analysis by Uwe Kolitsch + EDS analysis by Franz Neuhold)
    New Zealand
     
    www.koeln.netsurf.de/~w.steffens/other.htm
    NZJGG, 2003, 46: 581-590. NZJGG, 1991, 34: 337-340. NZJGG, 1981, 24: 449-467
    NZJGG, 2003, 46: 581-590. NZJGG, 1991, 34: 337-340. NZJGG, 1981, 24: 449-467
    NZJGG, 2003, 46: 581-590. NZJGG, 1991, 34: 337-340. NZJGG, 1981, 24: 449-467
    Niger
     
    • Diffa Department
    Handbook of Mineralogy
    Norway
     
    • Oppland
      • Lunner
        • Nordmarka
    Raade, G. & Haug, J. (1982): Gjerdingen. Fundstelle seltener Mineralien in Norwegen. LAPIS 7, 9-15
    Russia
     
    • Eastern-Siberian Region
      • Sakha Republic (Saha Republic; Yakutia)
        • Aldan Shield
          • Chara and Tokko Rivers Confluence
            • Murunskii Massif
    Konev, A.A., Vorobyev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
              • Sirenevyi Kamen' Deposit
    Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.)
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
          • Lovozero Massif
    Sorokhtina N.V., Voloshin A.V., Pakhomovskii Ya.A., Selivanova E.A. (2004) The first find of daqingshanite-(Ce) on Kola peninsula, - Trudy 1 Fersmanovskoi Nauchnoi Sessii Kolskogo Otdeleniya VMO, Apatity,pt.1, pp. 34-36 (in Russ.)
            • Karnasurt Mt
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Zubkova, N. V., Pekov, I. V., Pushcharovsky, D. Y., & Chukanov, N. V. (2009). The crystal structure and refined formula of mountainite, KNa2Ca2 [Si8O19 (OH)]⊙ 6 H2O. Zeitschrift für Kristallographie, 224(8), 389-396.
    [World of Stones 95:5-6, p64]; The Canadian Mineralogist Vol. 43, pp. 735-746 (2005)
          • Turii Cape
    www.koeln.netsurf.de/~w.steffens/tury.htm; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    USA
     
    • Arkansas
      • Hot Spring Co.
        • Magnet Cove
    Rocks & Min.:63:109.
    Horváth Collection - confirmed visually
      • Pulaski Co.
        • Little Rock
    Rocks and Minerals, (1988) 63:104-125; Rocks and Minerals, (1989) 64:314-322
    Horvath collection visual id.
    AmMin 20:598
      • Liberty Co.
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
        • Sweet Grass Hills
    D. B. Stewart (1959),THE AMERICAN MINERALOGIST, VOL.44:265-273
    D. B. Stewart (1959),THE AMERICAN MINERALOGIST, VOL.44:265-273
    • New Mexico
      • Otero Co.
        • Cornudas Mts
    Dr. W. Stoll (private communication 2001 & 2004)
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