Revdite Mineral Data + 
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- 74.3.6.1 Revdite Na2Si2O5·5(H2O) C 2 2
- VIII/H.05-10 Natrosilite Na2Si2O5 P 21/a 2/m
- VIII/H.05-30 Kanemite NaHSi2O5·3(H2O) P bcn 2/m 2/m 2/m
- VIII/H.05-40 Revdite Na2Si2O5·5(H2O) C 2 2
General Revdite Information |
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 Chemical Formula: |
Na2Si2O5·5(H2O) | ||
| Composition: |
Molecular Weight = 272.22 gm | ||
| Sodium 16.89 % Na 22.77 % Na2O | |||
| Silicon 20.63 % Si 44.14 % SiO2 | |||
| Hydrogen 3.70 % H 33.09 % H2O | |||
| Oxygen 58.77 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Na2(Si2O5)·5(H2O) | ||
| IMA Status: |
Approved IMA 1980 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 39603 | ||
| PDF 33-1279 | |||
Search for Revdite Images | |||
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Images:
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Revdite Crystallography |
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| Axial Ratios: |
a:b:c =0.5398:1:0.6926 | ||
| Cell Dimensions: |
a = 5.383, b = 9.972, c = 6.907, Z = 2; beta = 96.78° V = 368.17 Den(Calc)= 2.46 | ||
| Crystal System: |
Monoclinic - SphenoidalH-M Symbol (2) Space Group: C 2 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.46(1), 13.37(0.76), 3.34(0.71), | ||
Physical Properties of Revdite |
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| Cleavage: |
[100] Perfect, [010] Perfect | ||
| Color: |
Colorless, White. | ||
| Density: |
1.94 | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
2 - Gypsum | ||
| Luster: |
Vitreous - Pearly | ||
| Streak: |
white | ||
Optical Properties of Revdite |
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| Gladstone-Dale: |
CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.211 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1953,KPDmeas= 0.2476,KC= 0.2476 |
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| Optical Data: |
Biaxial (-), a=1.469, b=1.482, g=1.49, bire=0.0210, 2V(Calc)=74, 2V(Meas)=75. | ||
Calculated Properties of Revdite |
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| Electron Density: |
relectron=2.00 gm/cc |
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| Fermion Index |
Fermion Index = 0.00992 Boson Index = 0.99008 |
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| Photoelectric: |
PERevdite = 1.14 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Revdite is Not Radioactive |
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Revdite Classification |
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| Dana Class: |
74.3.6.1 (74)Phyllosilicate Modulated Layers | ||
| (74.3)with joined strips | |||
| (74.3.6)Dana Group | |||
| Strunz Class: |
VIII/H.05-40 VIII - Silicates | ||
| VIII/H - Phyllosilicates (layered), Tetragonal or pseudotetragonal layered structures [Si4O10]4- and others | |||
| VIII/H.05 - Natrosilite - Revdite series | |||
Other Revdite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Revdite : 1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (MinSocAm) 9 -Handbook of Mineralogy (UofA) 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 -Mineralienatlas (Deutsch) 14 -QUT Mineral Atlas 15 - WWW-MINCRYST 16 -École des Mines de Paris Search for Revdite using: Visit our Advertisers for Revdite : Translate Revdite Mineral Data : Ask about Revdite here : Print or Cut-and-Paste your Revdite Specimen Label here :
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