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Tosudite Mineral Data + |
General Tosudite Information |
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| Na0,5(Al,Mg)6(Si,Al)8O18(OH)12·5(H2O) | |||
| 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 | |||
| Na0.5Al4Mg2Si7AlO18(OH)12·5(H2O) | |||
| Hydrothermal alteration product of tuffs, andesites, sediments, and so on. | |||
| Approved IMA 1963 | |||
| 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. | |||
| Named for Toshio Sudo (1911-), Japanese mineralogist and crystallographer, University of Tokyo, Japan. | |||
| Alushtite | |||
| Chlorite | |||
Tosudite Image | |||
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Tosudite Crystallography |
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| a:b:c =0.5617:1:3.3483 | |||
| a = 5, b = 8.9, c = 29.8, Z = 2; V = 1,326.10 Den(Calc)= 2.44 | |||
| OrthorhombicSpace Group: Unk | |||
| By Intensity(I/Io): 4.53(1), 15(0.7), 4.97(0.45), | |||
Physical Properties of Tosudite |
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| [001] Perfect | |||
| Azure, Blue white, Green, Yellow, White. | |||
| 2.42 | |||
| Massive - Lamellar - Distinctly foliated fine-grained forms. | |||
| 1-2 - Between Talc and Gypsum | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Tosudite |
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| 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 |
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| Biaxial (-), a=1.542-1.564, b=1.57, g=1.548-1.74, bire=0.0060-0.1760 | |||
Calculated Properties of Tosudite |
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relectron=2.48 gm/cc |
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| Fermion Index = 0.01469 Boson Index = 0.98531 |
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PETosudite = 1.36 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tosudite is Not Radioactive |
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Tosudite Classification |
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| 71.4.2.4 (71)Phyllosilicate Sheets of Six-Membered Rings | |||
| (71.4)interlayered 1:1, 2:1, and octahedra | |||
| (71.4.2)Interstratified Chlorite-Smectite group | |||
| VIII/H.18-50 VIII - Silicates | |||
| VIII/H - Phyllosilicates (layered) Mica like with [Si4O10]4- and related groups | |||
| VIII/H.18 - Smectite/Montmorillonite group | |||
Other Tosudite Information |
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| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) | |||
| Links to other databases for Tosudite : 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 -École des Mines de Paris Search for Tosudite using: Visit our Advertisers for Tosudite : Translate Tosudite Mineral Data : Ask about Tosudite here : Print or Cut-and-Paste your Tosudite Specimen Label here :
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