Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Tienshanite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About TienshaniteHide

Formula:
KNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(O,OH,F)11
Colour:
Olive-green
Lustre:
Vitreous
Hardness:
6 - 6½
Specific Gravity:
3.29
Crystal System:
Hexagonal
Name:
Named after its discovery locality, Dara-i-Pioz, Tien Shan Mountains, Tajikistan.
This page provides mineralogical data about Tienshanite.


Unique IdentifiersHide

Mindat ID:
3958
Long-form identifier:
mindat:1:1:3958:7
GUID
(UUID V4):
f15e22d3-a6c4-4488-9610-c9acdedbfe25

IMA Classification of TienshaniteHide

Approved
IMA Formula:
K(Na,K,◻)9Ca2Ba6Mn2+6Ti6B12Si36O114(O,OH,F)11
Approval year:
1967
First published:
1967

Classification of TienshaniteHide

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
TshIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of TienshaniteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Olive-green
Hardness:
6 - 6½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
{001}
Density:
3.29 g/cm3 (Measured)    3.14 g/cm3 (Calculated)

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

Chemistry of TienshaniteHide

Mindat Formula:
KNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(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

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005580TienshaniteCooper M A, Hawthorne F C (1998) Refinement of the crystal structure of tienshanite: short-range-order constraints on chemical composition The Canadian Mineralogist 36 1305-131019980293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.19 Å(100)
3.18 Å(90)
3.47 Å(80)
2.803 Å(50)
2.419 Å(50)
10.5 Å(35)
3.89 Å(30)
Comments:
Dara-i-Pioz Glacier, Tajikistan. The data are from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of TienshaniteHide

General Appearance of Type Material:
Finely crystalline aggregates up to 5x6 cm in size. Sometimes replaced by datolite.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, Russia, numbers 70146, vis3329 (type).
Geological Setting of Type Material:
In a narrow vein of quartz-aegirine-microcline pegmatite, cutting alkali syenite.
Associated Minerals at Type Locality:

Synonyms of TienshaniteHide

Other Language Names for TienshaniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Tienshanite associated with SogdianiteK◻2Zr2Li3[Si12O30]

Other InformationHide

Electrical:
Not piezo-electric.
Thermal Behaviour:
Fuses at 840°C.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for TienshaniteHide

References 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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Tajikistan (TL)
 
  • Districts of Republican Subordination
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: March 28, 2024 13:13:19 Page updated: December 22, 2023 00:55:48
Go to top of page