Silinaite Mineral Data + 
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- 74.3.5.1 Natrosilite Na2Si2O5 P 21/a 2/m
- 74.3.5.2 Makatite Na2Si4O8(OH)2·4(H2O) P 21/c 2/m
- 74.3.5.3 Silinaite NaLiSi2O5·2(H2O) A2/n 2/m
- 74.3.5.4 Searlesite NaBSi2O5(OH)2 P 21 2
- VIII/G.05-05 Silinaite NaLiSi2O5·2(H2O) A2/n 2/m
- VIII/G.05-10 Searlesite NaBSi2O5(OH)2 P 21 2
- VIII/G.05-20 Makatite Na2Si4O8(OH)2·4(H2O) P 21/c 2/m
General Silinaite Information |
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 Chemical Formula: |
NaLiSi2O5·2(H2O) | ||
| Composition: |
Molecular Weight = 202.13 gm | ||
| Sodium 11.37 % Na 15.33 % Na2O | |||
| Lithium 3.43 % Li 7.39 % Li2O | |||
| Silicon 27.79 % Si 59.45 % SiO2 | |||
| Hydrogen 1.99 % H 17.83 % H2O | |||
| Oxygen 55.41 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
NaLiSi2O5·2(H2O) | ||
| IMA Status: |
Approved IMA 1991 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 63718 | ||
| IMA1990-028 | |||
| PDF 44-1410 | |||
Search for Silinaite Images | |||
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Images:
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Silinaite Crystallography |
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| Axial Ratios: |
a:b:c =0.6072:1:1.7258 | ||
| Cell Dimensions: |
a = 5.061, b = 8.334, c = 14.383, Z = 4; beta = 96.6° V = 602.63 Den(Calc)= 2.23 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/n | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.847(1), 4.14(1), 7.14(1), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Silinaite |
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| Cleavage: |
[001] Perfect, [010] Good, [110] Good | ||
| Color: |
Colorless, White. | ||
| Density: |
2.24 | ||
| Diaphaniety: |
Translucent to Opaque | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luster: |
Vitreous - Dull | ||
| Streak: |
white | ||
Optical Properties of Silinaite |
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| Gladstone-Dale: |
CI meas= 0.024 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.019 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2315,KPDmeas= 0.2305,KC= 0.2361 |
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| Optical Data: |
Biaxial (+), a=1.515, b=1.516, g=1.518, bire=0.0030, 2V(Calc)=72, 2V(Meas)=64-71. | ||
Calculated Properties of Silinaite |
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| Electron Density: |
relectron=2.25 gm/cc |
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| Fermion Index |
Fermion Index = 0.01582 Boson Index = 0.98418 |
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| Photoelectric: |
PESilinaite = 1.31 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Silinaite is Not Radioactive |
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Silinaite Classification |
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| Dana Class: |
74.3.5.3 (74)Phyllosilicate Modulated Layers | ||
| (74.3)with joined strips | |||
| (74.3.5)Na phyllosilicates | |||
| Strunz Class: |
VIII/G.05-05 VIII - Silicates | ||
| VIII/G - Intermediate between chain- and layered silicates | |||
| VIII/G.05 - Silinaite - Makatite series | |||
Other Silinaite Information |
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| References: |
PHYS. PROP.(Am.Min.,Vol.76,p2023,1991) OPTIC PROP.(Am.Min.,Vol.76,p2023,1991) | ||
| See Also: |
Links to other databases for Silinaite : 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 Silinaite using: Visit our Advertisers for Silinaite : Translate Silinaite Mineral Data : Ask about Silinaite here : Print or Cut-and-Paste your Silinaite Specimen Label here :
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