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Tanohataite Mineral Data
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General Tanohataite Information
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 Chemical Formula: |
LiMn2Si3O8(OH) |
| Composition: |
Molecular Weight = 346.08 gm |
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Lithium 2.01 % Li 4.32 % Li2O |
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Manganese 31.75 % Mn 41.00 % MnO |
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Silicon 24.35 % Si 52.08 % SiO2 |
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Hydrogen 0.29 % H 2.60 % H2O |
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Oxygen 41.61 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
LiMn2+2Si3O8(OH) |
| Environment: |
Wollastonite group. |
| IMA Status: |
Proposed IMA 2007 (Dana # Added) |
| Locality: |
Matsumaezawa pit, Tanohata mine, Tanohata Village, Iwate Prefecture, Japan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the type locality. |
| Synonym: |
IMA2007-019 |
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Tanohataite Crystallography
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| Axial Ratios: |
a:b:c =1.0815:1:0.9519 |
| Cell Dimensions: |
a = 7.612, b = 7.038, c = 6.7, Z = 2; alpha = 90.23°, beta = 94.7°, gamma = 105.26° V = 345.12 Den(Calc)= 3.33 |
| Crystal System: |
Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.946(1), 3.134(0.89), 3.109(0.69),2.182(0.4), 6.64(0.35), 2.814(0.33), 3.666(0.26), 2.581(0.22), |
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Optical Properties of Tanohataite
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| Optical Data: |
NCalc= 1.7 - from Gladstone-Dale relationship (KC = 0.2112) where Ncalc=Dcalc*KC+1
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Calculated Properties of Tanohataite
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| Electron Density: |
Bulk Density (Electron Density)=3.23 gm/cc
note: Specific Gravity of Tanohataite =3.33 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PETanohataite = 9.05 barns/electron
U=PETanohataite x rElectron Density= 29.25 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tanohataite is Not Radioactive |
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Tanohataite Classification
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| Dana Class: |
65.02.01.08 (65)Inosilicate Single-Width Unbranched Chains, W=1 |
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(65.02)with chains P=3 |
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(65.02.01)Wollastonite group |
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65.02.01.01a Wollastonite-1A CaSiO3 P1 1 |
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65.02.01.01b Wollastonite-2M* CaSiO3 P 21 2 |
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65.02.01.01c Wollastonite-3A-4A-5A-7A* CaSiO3 P1 1 |
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65.02.01.02 Bustamite (Mn,Ca)3Si3O9 P1 1 |
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65.02.01.03 Ferrobustamite Ca(Fe,Ca,Mn)Si2O6 P1 1 |
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65.02.01.04 Pectolite NaCa2Si3O8(OH) P1 1 |
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65.02.01.05 Serandite Na(Mn,Ca)2Si3O8(OH) P1 1 |
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65.02.01.06 Cascandite Ca(Sc,Fe)Si3O8(OH) C1 1 |
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65.02.01.07 Denisovite (K,Na)Ca2Si3O8(F,OH) Mono |
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65.02.01.08 Tanohataite! LiMn2Si3O8(OH) P1 1 |
| Strunz Class: |
09.DX.00 09 - SILICATES (Germanates) |
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09.D - Unclassified Strunz Inosilicates |
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09.DX -Unknown |
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09.DX.00 Hypersthene? (Mg,Fe)2Si2O6 2/m 2/m 2/m |
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09.DX.00 Plumalsite* Pb4Al2(SiO3)7(?) Unk Ortho |
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09.DX.00 IMA2008-070 NaLi2(Fe2Al2Li)(Si6Al2)O22F2 C 2/m 2/m |
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09.DX.00 IMA2007-015 K(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m |
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09.DX.00 Tanohataite! LiMn2Si3O8(OH) P1 1 |
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09.DX.00 Punkaruaivite! Li{Ti2(OH)2[Si4O11(OH)]}•H2O C 2/c 2/m |
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09.DX.00 Yegorovite! Na4[Si2O4(OH)2]2•7H2O P 21/c 2/m |
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09.DX.00 Kushiroite CaAl2SiO6 C 2/c 2/m |
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09.DX.00 Grossmanite CaTiAlSiO6 C 2/m 2/m |
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09.DX.00 IMA2009-009 KNa2Li(Mg,Fe)2Ti2Si8O24 C 2/m 2/m |
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09.DX.00 IMA2009-010 [Ba6(PO4)2(CO3)][Fe7(OH)4Fe2O2(SiO3)8] P1 1 |
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09.DX.00 IMA2009-012 NaNa2(Mg2Al2Li)Si8O22F2 C 2/m 2/m |
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Other Tanohataite Information
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| See Also: |
Links to other databases for Tanohataite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Print or Cut-and-Paste your Tanohataite Specimen Label here :
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Tanohataite
LiMn2Si3O8(OH)
Dana No: 65.02.01.08 Strunz No: 09.DX.00
Locality:
Notes:
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