Mineralogy Database

Tosudite Mineral Data

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General Tosudite Information

Help on Chemical  Formula: Chemical Formula: Na0,5(Al,Mg)6(Si,Al)8O18(OH)12•5(H2O)
Help on Composition: Composition: Molecular Weight = 973.76 gm
   Sodium      1.18 %  Na    1.59 % Na2O
   Magnesium   4.99 %  Mg    8.28 % MgO
   Aluminum   13.85 %  Al   26.18 % Al2O3
   Silicon    20.19 %  Si   43.19 % SiO2
   Hydrogen    2.28 %  H    20.35 % H2O
   Oxygen     57.51 %  O
             ______        ______ 
             100.00 %       99.59 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.5Al4Mg2Si7AlO18(OH)12•5(H2O)
Help on Environment: Environment: Hydrothermal alteration product of tuffs, andesites, sediments, and so on.
Help on IMA Status: IMA Status: Approved IMA 1963
Help on Locality: Locality: Al-tosudite - Alushta, Crimea, Russia. Mg-tosudite - Kamakita mine, Aomori Prefecture, Japan. Li-tosudite - Himalaya pegmatite, San Diego County, Californina, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Toshio Sudo (1911-), Japanese mineralogist and crystallographer, University of Tokyo, Japan.
Help on Name Pronunciation: Name Pronunciation: Tosudite Say TOSUDITE
Help on Synonym: Synonym: Alushtite
  Chlorite
 

Tosudite Image

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  Tosudite

Comments: Fine grained massive tosudite.
Location: Takatama Mine, Fukushima, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tosudite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5617:1:3.3483
Help on Cell Dimensions: Cell Dimensions: a = 5, b = 8.9, c = 29.8, Z = 2; V = 1,326.10 Den(Calc)= 2.44
Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.53(1), 15(0.7), 4.97(0.45),
 

Physical Properties of Tosudite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Azure, Blue white, Green, Yellow, White.
Help on Density: Density: 2.42
Help on Habit: Habit: Massive - Lamellar - Distinctly foliated fine-grained forms.
Help on Hardness: Hardness: 1-2 - Between Talc and Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Tosudite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.045 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.037 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2414,KPDmeas= 0.2434,KC= 0.2328
Ncalc = 1.56 - 1.57
Help on Optical Data: Optical Data: Biaxial (-), a=1.542-1.564, b=1.57, g=1.548-1.74, bire=0.0060-0.1760
 

Calculated Properties of Tosudite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.48 gm/cc
note: Specific Gravity of Tosudite =2.44 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PETosudite = 1.36 barns/electron
U=PETosudite x rElectron Density= 3.37 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tosudite is Not Radioactive
 

Tosudite Classification

Help on  Dana Class: Dana Class: 71.04.02.04 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.04)interlayered 1:1, 2:1, and octahedra
  (71.04.02)Interstratified Chlorite-Smectite group
 
71.04.02.01 Dozyite (Mg7Al2)(Si4Al2)O15(OH)12 Cm m
 
71.04.02.02 Lunijianlaite LiAl6(Si7Al)O20(OH)10 Unk Mono
 
71.04.02.03 Saliotite Na0.5Li0.5Al3AlSi3O10(OH)5 C 2/m 2/m
 
71.04.02.04 Tosudite Na0,5(Al,Mg)6(Si,Al)8O18(OH)12•5(H2O) Unk Ortho
 
71.04.02.05 Corrensite (Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10•n(H2O) Unk Ortho
 
71.04.02.06 Kulkeite Na0.35Mg8AlSi7O20(OH)10 Unk Mono
 
71.04.02.07 Rectorite (Na,Ca)Al4(Si,Al)8O20(OH)4•2(H2O) Unk Mono
 
71.04.02.08 Aliettite [Mg3Si4O10(OH)2](Ca0.5,Na)0.33(Al,Mg,Fe)2-3(Si,Al)4O10(OH)2•n(H2O) Unk Mono
 
71.04.02.09 Glagolevite! NaMg6[Si3AlO10](OH,O)8•H2O C1 1
Help on  Strunz Class: Strunz Class: 09.EC.60 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.60 Aliettite [Mg3Si4O10(OH)2](Ca0.5,Na)0.33(Al,Mg,Fe)2-3(Si,Al)4O10(OH)2•n(H2O) Unk Mono
 
09.EC.60 Dozyite (Mg7Al2)(Si4Al2)O15(OH)12 Cm m
 
09.EC.60 Corrensite (Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10•n(H2O) Unk Ortho
 
09.EC.60 Kulkeite Na0.35Mg8AlSi7O20(OH)10 Unk Mono
 
09.EC.60 Karpinskite (Mg,Ni)2Si2O5(OH)2(?) Unk Mono
 
09.EC.60 Illite* (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)] C 2/m 2/m
 
09.EC.60 Hydrobiotite [K(Mg,Fe)3(Al,Fe)Si3O10(OH,F)2]•[(Mg,Fe,Al)3(Si,Al)4O10(OH)2•4(H2O)] C 2/m 2/m
 
09.EC.60 Lunijianlaite LiAl6(Si7Al)O20(OH)10 Unk Mono
 
09.EC.60 Rectorite (Na,Ca)Al4(Si,Al)8O20(OH)4•2(H2O) Unk Mono
 
09.EC.60 Saliotite Na0.5Li0.5Al3AlSi3O10(OH)5 C 2/m 2/m
 
09.EC.60 Tosudite Na0,5(Al,Mg)6(Si,Al)8O18(OH)12•5(H2O) Unk Ortho
 
09.EC.60 Brinrobertsite! (Na,K,Ca)x(Al,Fe,Mg)4(Si,Al)8O20(OH)4•3.54(H2O)[x=0.35,n=3.54] pseudo 2/m 2/m
 

Other Tosudite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Tosudite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Tosudite Specimen Label here :

Tosudite

Na0,5(Al,Mg)6(Si,Al)8O18(OH)12•5(H2O)
Dana No: 71.04.02.04 Strunz No: 09.EC.60
Locality:

 

Notes:

 

 
   
 


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