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Tienshanite Mineral Data + |
General Tienshanite Information |
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| BaNa2MnTiB2Si6O20 | |||
| Molecular Weight = 796.25 gm | |||
| Barium 17.25 % Ba 19.26 % BaO | |||
| Sodium 5.77 % Na 7.78 % Na2O | |||
| Titanium 6.01 % Ti 10.03 % TiO2 | |||
| Manganese 6.90 % Mn 8.91 % MnO | |||
| Silicon 21.16 % Si 45.28 % SiO2 | |||
| Boron 2.72 % B 8.74 % B2O3 | |||
| Oxygen 40.19 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| BaNa2Mn2+TiB2Si6O20 | |||
| Pegmatite cutting alkalic syenite. | |||
| Approved IMA 1967 | |||
| Dara-i-pioz massif, Tien Shan, southern Tajikistan. Link to MinDat.org Location Data. | |||
| Named for the locality. | |||
| ICSD 76913 | |||
| PDF 20-1291 | |||
Tienshanite Image | |||
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Tienshanite Crystallography |
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| a:c = 1:0.62216 | |||
| a = 16.772, c = 10.435, Z = 6; V = 2,542.10 Den(Calc)= 3.12 | |||
| Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 6/m | |||
| By Intensity(I/Io): 4.19(1), 3.177(0.9), 3.474(0.8), | |||
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Physical Properties of Tienshanite |
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| [0001] Distinct | |||
| Pistachio green. | |||
| 3.29 | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| 6-6.5 - Orthoclase-Pyrite | |||
| Vitreous (Glassy) | |||
Optical Properties of Tienshanite |
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| CI meas= 0.043 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.01 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2114,KPDmeas= 0.2005,KC= 0.2094 |
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| Uniaxial (-), e=1.653, w=1.666, bire=0.0130. | |||
Calculated Properties of Tienshanite |
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relectron=2.97 gm/cc |
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| Fermion Index = 0.05399 Boson Index = 0.94601 |
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PETienshanite = 76.38 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tienshanite is Not Radioactive |
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Tienshanite Classification |
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| 64.4.1.1 (64)Cyclosilicate Rings with Other Anions and Insular Silicate Groups | |||
| (64.4)6-membered rings with [Si2O7] dimers | |||
| (64.4.1)Dana Group | |||
| VIII/E.20-10 VIII - Silicates | |||
| VIII/E - Cyklosilicates, six rings [Si6O18]12- | |||
| VIII/E.20 - Tienshanite - Traskite series | |||
Other Tienshanite Information |
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| NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Tienshanite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Tienshanite using: Visit our Advertisers for Tienshanite : Translate Tienshanite Mineral Data : Ask about Tienshanite here : Print or Cut-and-Paste your Tienshanite Specimen Label here :
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