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Irtyshite

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02453040015710686265153.jpg
Irtysh River, Kazakhstan
Formula:
Na2(Ta,Nb)4O11
Colour:
Colorless
Lustre:
Adamantine
Hardness:
7
Specific Gravity:
7.03 (Calculated)
Crystal System:
Hexagonal
Name:
Named for the Irtysh River, a major river close to the type locality. The Irtysh leads into the Ob River. The pair, taken together, form the seventh longest river in the world.
This page provides mineralogical data about Irtyshite.


Hide all sections | Show all sections

Classification of IrtyshiteHide

Approved
First Published:
1985
4.DJ.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
J : With large (+- medium-sized) cations; polyhedral frameworks
8.6.2.3

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
6 : (AB)6O11·nH2O
18.1.6

18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U

Physical Properties of IrtyshiteHide

Adamantine
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Hardness:
Hardness:
VHN20=1190 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
7.03 g/cm3 (Calculated)

Optical Data of IrtyshiteHide

Type:
Uniaxial
Type:
Anisotropic
Pleochroism:
Non-pleochroic

Chemical Properties of IrtyshiteHide

Formula:
Na2(Ta,Nb)4O11
IMA Formula:
Na2Ta4O11

Crystallography of IrtyshiteHide

Crystal System:
Hexagonal
Cell Parameters:
a = 6.23 Å, c = 36.77 Å
Ratio:
a:c = 1 : 5.902
Unit Cell V:
1,235.95 ų (Calculated from Unit Cell)
Z:
6
Comment:
Р6 3/m ог Р6 3

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.13 Å(7)
5.18 Å(6)
3.082 Å(9)
3.029 Å(10)
2.780 Å(9)
2.480 Å(6)

Type Occurrence of IrtyshiteHide

General Appearance of Type Material:
veins (0.02x0.2mm) and irregular grains (0.05mm)
Place of Conservation of Type Material:
Fersman Museum
Geological Setting of Type Material:
Granitic pegmatites
Associated Minerals at Type Locality:
Reference:
Voloshin, A.V., Pakhomovsky, Y.A., Bulgak, L.V., Perlina, G.A. (1985) Irtyshite - a new mineral from granitic pegmatites. Mineralogiceskij Zhurnal: 7: 83-87.

Synonyms of IrtyshiteHide

Other Language Names for IrtyshiteHide

German:Irtyshit
Spanish:Irtyshita

Relationship of Irtyshite to other SpeciesHide

Other Members of this group:
CalciotantiteCaTa4O11Hex.
NatrotantiteNa2Ta4O11Mon.

Related Minerals - Nickel-Strunz GroupingHide

4.DJ.05CalciotantiteCaTa4O11Hex.
4.DJ.05NatrotantiteNa2Ta4O11Mon.

Related Minerals - Dana Grouping (8th Ed.)Hide

8.6.2.1CalciotantiteCaTa4O11Hex.
8.6.2.2NatrotantiteNa2Ta4O11Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

18.1.1LithiotantiteLiTa3O8Mon.
18.1.2LueshiteNaNbO3Orth. mmm (2/m 2/m 2/m)
18.1.3NatroniobiteNaNbO3Mon.
18.1.4FranconiteNa(Nb2O5)(OH) · 3H2OMon.
18.1.5NatrotantiteNa2Ta4O11Mon.
18.1.7Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31Orth. mmm (2/m 2/m 2/m) : Cmmm
18.1.8Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
18.1.9CalciotantiteCaTa4O11Hex.
18.1.10RynersoniteCaTa2O6Orth. mmm (2/m 2/m 2/m)
18.1.11Microlite GroupA2-mTa2X6-wZ-nIso. m3m (4/m 3 2/m) : Fd3m
18.1.12BelyankiniteCa1-2(Ti,Nb)5O12 · 9H2O (?)Amor.
18.1.13LatrappiteCa2NbFe3+O6Orth. mmm (2/m 2/m 2/m) : Pnma
18.1.14Hochelagaite(Ca,Na,Sr)(Nb,Ti,Si,Al)4O11 · 8H2OMon.
18.1.15Bariomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
18.1.16ParabariomicroliteBaTa4O10(OH)2 · 2H2OTrig.
18.1.17Bariopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6ZIso. m3m (4/m 3 2/m) : Fd3m
18.1.18AlumotantiteAlTaO4Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.19SimpsoniteAl4Ta3O13(OH)Trig. 3 : P3
18.1.20Sosedkoite(K,Na)5Al2(Ta,Nb)22O60Orth.
18.1.21Thoreaulite(Sn2+,Pb)(Ta,Nb)2O6Mon.
18.1.22Stannomicrolite (of Hogarth 1977)
18.1.23FoorditeSn2+(Nb,Ta)2O6Mon. 2/m : B2/b
18.1.24ChangbaiitePbNb2O6Trig.
18.1.25Plumbopyrochlore (of Skorobogatova et al.)A2Nb2(O,OH)6Z
18.1.26Plumbomicrolite (of Hogarth 1977)
18.1.27StibiocolumbiteSb(Nb,Ta)O4Orth. mm2
18.1.28StibiotantaliteSb(Ta,Nb)O4Orth. mm2
18.1.29NatrobistantiteIso.
18.1.30Cesplumtantite(Cs,Na)2(Pb,Sb3+)3Ta8O24Tet.
18.1.31Stibiomicrolite (of Groat et al.)
18.1.32Cesstibtantite
18.1.34BismutotantaliteBi(Ta,Nb)O4Orth.
18.1.35Bismutomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
18.1.36Tantalite-(Mn)Mn2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.37Gerasimovskite(Mn,Ca)(Nb,Ti)5O12 · 9H2OAmor.
18.1.38Tapiolite-(Mn)Mn2+Ta2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
18.1.39Columbite-(Mn)Mn2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.40WodginiteMn2+Sn4+Ta2O8Mon.
18.1.41Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8Orth.
18.1.42Columbite-(Fe)Fe2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.43Tantalite-(Fe)Fe2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.44ColumbiteOrth. mmm (2/m 2/m 2/m) : Pbcn
18.1.45Tantalite(Mn,Fe)(Ta,Nb)2O6
18.1.46Tapiolite(Fe,Mn)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m)
18.1.47Tapiolite-(Fe)Fe2+Ta2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
18.1.48Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.
18.1.50Strüverite(Ti,Ta,Fe)O2
18.1.51 Staringite(Fe,Mn)x(Ta,Nb)2xSn6-3xO12

Other InformationHide

Notes:
yellow-green cathodoluminescence
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 IrtyshiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Voloshin, A.V., Pakhomovsky, Y.A., Bulgak, L.V., Perlina, G.A. (1985) Irtyshite - a new mineral from granitic pegmatites. Mineralogiceskij Zhurnal: 7: 83-87.
Hawthorne, F.C., Bladh, K.W., Burke, E.A.J., Ercit, S., Grew, E.S., Grice, J.D., Puziewicz, J., Roberts, A.C., Schedler, R.A., Shigley, J.E. (1986) New mineral names. American Mineralogist: 71: 1543-1548.

Internet Links for IrtyshiteHide

Localities for IrtyshiteHide

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.
Kazakhstan (TL)
 
  • East Kazakhstan
    • Kalba Range
      • Irtysh River
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Ulan
Волошин АВ и др. Минералогический журнал 7(1985)3, 83-87
 
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