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Tienshanite

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About TienshaniteHide

Formula:
KNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(O,OH,F)11
Colour:
Olive-green
Lustre:
Vitreous
Hardness:
6 - 6½
Crystal System:
Hexagonal
Name:
Named after its discovery locality, Dara-i-Pioz, Tien Shan Mountains, Tajikistan.
This page provides mineralogical data about Tienshanite.


Classification of TienshaniteHide

Approved
Approval Year:
1967
9.CL.05

9 : SILICATES (Germanates)
C : Cyclosilicates
L : [Si6O18]12- branched 6-membered single rings
64.4.1.1

64 : CYCLOSILICATES Rings with Other Anions and Insular Silicate Groups
4 : Rings with Other Anions and Insular Silicate Groups: 6-membered rings with [Si2O7] dimers
17.5.32

17 : Silicates Containing other Anions
5 : Borosilicates

Physical Properties of TienshaniteHide

Vitreous
Colour:
Olive-green
Hardness:
6 - 6½ on Mohs scale

Optical Data of TienshaniteHide

Type:
Uniaxial (-)
RI values:
nω = 1.666 nε = 1.653
Max Birefringence:
δ = 0.013
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of TienshaniteHide

Formula:
KNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(O,OH,F)11
IMA Formula:
K(Na,K,◻)9Ca2Ba6Mn2+6Ti6B12Si36O114(O,OH,F)11
Elements listed:
Common Impurities:
Fe,Ta,Nb,Mg,Ca,K

Crystallography of TienshaniteHide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P6/m
Cell Parameters:
a = 16.785(2) Å, c = 10.454(1) Å
Ratio:
a:c = 1 : 0.623
Unit Cell V:
2550.7 ų
Z:
1

Type Occurrence of TienshaniteHide

Synonyms of TienshaniteHide

Other Language Names for TienshaniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Sogdianite1 photo of Tienshanite associated with Sogdianite on mindat.org.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.5.1ManandoniteLi2Al4(Si2AlB)O10(OH)8Orth.
17.5.2ReedmergneriteNaBSi3O8Tric.
17.5.3SearlesiteNa(H2BSi2O7)Mon. 2 : P21
17.5.4OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)Trig.
17.5.5ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.6KalborsiteK6Al4BSi6O20(OH)4ClTet.
17.5.7BoromuscoviteKAl2(BSi3O10)(OH)2Mon.
17.5.8PoudretteiteKNa2B3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
17.5.9LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.10DatoliteCaB(SiO4)(OH)Mon. 2/m : P21/b
17.5.11DanburiteCaB2Si2O8Orth. mmm (2/m 2/m 2/m)
17.5.12HowliteCa2B5SiO9(OH)5Mon. 2/m : P21/b
17.5.13BakeriteCa4(H5B5Si3O20)Mon. 2/m : P21/b
17.5.14OyeliteCa10Si8B2O29 · 12.5H2OOrth.
17.5.15KornerupineMg3Al6(Si,Al,B)5O21(OH)Orth. mmm (2/m 2/m 2/m)
17.5.16HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2OTrig. 3m (3 2/m) : R3m
17.5.17SerendibiteCa4[Mg6Al6]O4[Si6B3Al3O36]Tric. 1 : P1
17.5.18Stillwellite-(Ce)(Ce,La,Ca)BSiO5
17.5.19Tadzhikite-(Ce)Ca4Ce3+2Ti◻(B4Si4O22)(OH)2Mon.
17.5.20Melanocerite-(Ce)(Ce,Ca)5(SiO4,BO4)3(OH,0)Hex.
17.5.21Okanoganite-(Y)(Na,Ca)3(Y,Ce)12Si6B2O27F14
17.5.22Tritomite-(Ce)Ce5(SiO4,BO4)3(OH,O)
17.5.23Tritomite-(Y)Y5(SiO4,BO4)3(O,OH,F)
17.5.24Cappelenite-(Y)Ba(Y,Ce)6Si3B6O24F2Trig. 3 : P3
17.5.25Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3Orth. mmm (2/m 2/m 2/m)
17.5.26Holtite(Ta0.60.4)Al6BSi3O18(O,OH)2.25Orth. mmm (2/m 2/m 2/m) : Pnma
17.5.27DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.28 FerridraviteNaFe3+3(Mg2Fe3+4)(Si6O18)(BO3)3(OH)3O
17.5.29Axinite-(Mg)Ca2MgAl2BSi4O15OHTric.
17.5.30Uvite SeriesCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)Trig. 3m : R3m
17.5.31GarrelsiteBa3NaSi2B7O16(OH)4Mon.
17.5.33LeucospheniteBaNa4Ti2B2Si10O30Mon.
17.5.34TaramelliteBa4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2ClxOrth. mmm (2/m 2/m 2/m) : Pmmn
17.5.35TitantaramelliteBa4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2ClxOrth.
17.5.36NagashimaliteBa4(V,Ti)4B2Si8O27(O,OH)2ClOrth. mmm (2/m 2/m 2/m) : Pmmn
17.5.37Chromium-draviteNa(Mg3)Cr3+6(Si6O18)(BO3)3(OH)3(OH)Trig.
17.5.38WawayandaiteCa6Mn2BBe9Si6O23(OH,Cl)15Mon.
17.5.39Werdingite(Mg,Fe)2Al14Si4B4O37Tric.
17.5.40Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)Tric. 1 : P1
17.5.41AxiniteTric.
17.5.42TinzeniteCa2Mn2+4Al4[B2Si8O30](OH)2Tric.
17.5.44SchorlNa(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.45Fluor-buergeriteNa(Fe3+3)Al6(Si6O18)(BO3)3O3FTrig. 3m : R3m
17.5.46FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.47Axinite-(Fe)Ca2Fe2+Al2BSi4O15OHTric. 1 : P1
17.5.48HomiliteCa2(Fe2+,Mg)B2Si2O10Mon. 2/m : P21/b
17.5.49Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2Orth. mmm (2/m 2/m 2/m)
17.5.50Hyalotekite(Pb,Ba,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28(F,Cl)Tric. 1 : P1
17.5.51Hellandite-(Y)(Ca,REE)4Y2Al◻2(B4Si4O22) (OH)2Mon.

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 TienshaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dusmatov, V.D., Efimov, A.F., Alkhazov, V.Y., Kazakova, M.E., Mumyatskaya, N.G. (1967) Tienshanite — a new mineral. Doklady Akademii Nauk SSSR: 177: 678-680.
Doklady Akademii Nauk SSSR, Earth Science Sections: 177: 137-139.
Mandarino, J.A., Kato, A. (1968) New mineral names. American Mineralogist: 53: 1421-1427.
Grew, E.S., Belakovskiy, D.I., Fleet, M.E., Yates, M.G., McGee, J.J., Marquez, N. (1993) Reedmergnerite and associated minerals from peralkaline pegmatite, Dara-i-Pioz, southern Tien Shan, Tajikistan. European Journal of Mineralogy: 5: 971-984.
Grew, E.S., Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Cooper, M.A., Hawthorne, F.C., Grew, E.S. (1998) Refinement of the crystal structure of tienshanite: short-range-order constraints on chemical composition. The Canadian Mineralogist: 36: 1305-1310.
Jambor, J.L., Roberts, A.C. (1999) New mineral names. American Mineralogist: 84: 1464-1468.

Internet Links for TienshaniteHide

Localities for TienshaniteHide

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.
Tajikistan (TL)
 
  • Region of Republican Subordination
    • Tien Shan Mtn
      • Alai Range (Alayskiy)
Canadian Mineralogist 42:107-119 (2004); Karpenko, V., & Pautov, L. (2002). Formation of baotite in alcaline rocks of a moraine of Dara-i-Pioz glacier, Tadjikistan. Neues Jahrbuch für Mineralogie-Monatshefte, 2002(10), 459-467.
Mineral and/or Locality  
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