General Rastsvetaevite Information Chemical Formula: |
Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2 |
Composition: |
Molecular Weight = 6,063.62 gm |
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Potassium 5.16 % K 6.21 % K2O |
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Sodium 10.24 % Na 13.80 % Na2O |
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Calcium 7.93 % Ca 11.10 % CaO |
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Zirconium 9.03 % Zr 12.19 % ZrO2 |
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Iron 2.76 % Fe 3.55 % FeO |
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Silicon 24.09 % Si 51.53 % SiO2 |
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Hydrogen 0.05 % H 0.45 % H2O |
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Chlorine 1.17 % Cl 1.17 % Cl |
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- %
Cl -0.26 % -O=Cl2 |
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Oxygen 39.58 % O |
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______ ______ |
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100.00 % 99.74 % = TOTAL OXIDE |
Empirical Formula: |
Na27K8Ca12Fe2+3Zr6Si52O147.6(OH)1.8(H2O)0.6Cl2 |
Environment: |
Eudialyte group; structure |
IMA Status: |
Proposed IMA 2000 (Dana # Added) |
Locality: |
Link to MinDat.org Location Data. |
Name Origin: |
Commission on New Minerals, Nomenclature and Classification (CNMNC) |
Synonym: |
IMA2000-028 |
| | Rastsvetaevite Image
Images:
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Rastsvetaevite Crystallography Axial Ratios: |
a:c = 1:4.27882 |
Cell Dimensions: |
a = 14.249, c = 60.969, Z = 3; V = 10,720.34 Den(Calc)= 2.82 |
Crystal System: |
Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m |
X Ray Diffraction: |
By Intensity(I/Io): 2.987(1), 4.345(0.81), 2.861(0.7),3.249(0.57), 6.48(0.47), 3.565(0.41), 2.695(0.4), |
| Physical Properties of Rastsvetaevite Color: |
Pink. |
Diaphaneity: |
Transparent |
Luster: |
Vitreous (Glassy) |
| Optical Properties of Rastsvetaevite Gladstone-Dale: |
CI calc= -0.029 (Excellent) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.2124,KC= 0.2065 Ncalc = 1.58 Optical Data: |
Uniaxial (+), w=1.598, e=1.6, bire=0.0020. |
| Calculated Properties of Rastsvetaevite Electron Density: |
Bulk Density (Electron Density)=2.76 gm/cc |
note: Specific Gravity of Rastsvetaevite =2.82 gm/cc. Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PERastsvetaevite = 15.34 barns/electron |
U=PERastsvetaevite x relectron= 42.39 barns/cc. Radioactivity: |
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GRapi = 72.96 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Rastsvetaevite - barely detectable | Rastsvetaevite Classification Dana Class: |
64.01.01.10 (64)Cyclosilicates |
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(64.01)Cyclosilicate Rings with Other Anions and Insular Silicate Groups with mixed ring types |
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(64.01.01)Eudialyte Group |
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Strunz Class: |
09.CO.10 09 - SILICATES (Germanates) |
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09.C - Cyclosilicates |
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09.CO -[Si9O27]18- 9-membered rings |
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| Other Rastsvetaevite Information See Also: |
Links to other databases for Rastsvetaevite : |
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 Search for Rastsvetaevite using: Visit our Advertisers for Rastsvetaevite : A Bijoux Google Search for RastsvetaeviteAdam's Minerals Google Search for Rastsvetaevite Cape Minerals Google Search for Rastsvetaevite Dakota Matrix Minerals Google Search for Rastsvetaevite Excalibur Mineral Corp. Google Search for Rastsvetaevite Exceptional Minerals Google Search for Rastsvetaevite John Betts Fine Minerals Search for Rastsvetaevite McDougall Minerals Google Search for Rastsvetaevite Mineral News Website Link Rock and Mineral Shows Google Search for Rastsvetaevite Weinrich Minerals, Inc. Google Search for Rastsvetaevite Ask about Rastsvetaevite here : Print or Cut-and-Paste your Rastsvetaevite Specimen Label here :
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