General Alluaivite Information Chemical Formula: |
Na19(Ca,Mn++)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl•2(H2O) |
Composition: |
Molecular Weight = 2,169.25 gm |
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Sodium 20.14 % Na 27.14 % Na2O |
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Calcium 8.31 % Ca 11.63 % CaO |
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Titanium 4.97 % Ti 8.29 % TiO2 |
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Manganese 3.80 % Mn 4.91 % MnO |
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Niobium 3.21 % Nb 4.60 % Nb2O5 |
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Silicon 20.72 % Si 44.32 % SiO2 |
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Hydrogen 0.19 % H 1.66 % H2O |
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Chlorine 3.27 % Cl 3.27 % Cl |
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Cl -0.74 % -O=Cl2 |
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Oxygen 35.40 % O |
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______ ______ |
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100.00 % 105.07 % = TOTAL OXIDE |
Empirical Formula: |
Na19Ca4.5Mn2+1.5Ti2.25Nb0.75Si16O46Cl2·2(H2O) |
Environment: |
In ultra-agpaitic pegmatites in a differentiated alkalic massif. |
IMA Status: |
Approved IMA 1990 |
Locality: |
On Mt. Alluaiv, In the Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
Name Origin: |
For its occurrence on Mt. Alluaiv, Kola Peninsula, Russia. |
Name Pronunciation: |
Alluaivite + Pronunciation |
Synonym: |
ICSD 39342 |
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IMA1988-052 |
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PDF 45-1385 |
| | Search for Alluaivite Images
Images:
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| | Alluaivite Crystallography Axial Ratios: |
a:c = 1:4.31439 |
Cell Dimensions: |
a = 14.046, c = 60.6, Z = 8; V = 10,354.01 Den(Calc)= 2.78 |
Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m |
X Ray Diffraction: |
By Intensity(I/Io): 2.825(1), 2.96(1), 7.14(0.8), |
Crystal Structure:
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Mouse
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| Physical Properties of Alluaivite Cleavage: |
None |
Color: |
Brownish pink, Colorless. |
Density: |
2.76 |
Diaphaneity: |
Transparent |
Hardness: |
5-6 - Between Apatite and Orthoclase |
Luster: |
Vitreous (Glassy) |
Streak: |
white |
| Optical Properties of Alluaivite Gladstone-Dale: |
CI meas= 0.056 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.063 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2237,KPDmeas= 0.2254,KC= 0.2387 Ncalc = 1.66 Optical Data: |
Uniaxial (+), w=1.618, e=1.626, bire=0.0080. |
| Calculated Properties of Alluaivite Electron Density: |
Bulk Density (Electron Density)=2.70 gm/cc |
note: Specific Gravity of Alluaivite =2.76 gm/cc. Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEAlluaivite = 8.75 barns/electron |
U=PEAlluaivite x rElectron Density= 23.66 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Alluaivite is Not Radioactive | Alluaivite Classification Dana Class: |
64.01.01.02 (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 Alluaivite Information References: |
NAME( AntBidBlaNic2) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19) |
See Also: |
Links to other databases for Alluaivite : |
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 15 - WWW-MINCRYST Search for Alluaivite using: Visit our Advertisers for Alluaivite : A Bijoux Google Search for AlluaiviteAdam's Minerals Google Search for Alluaivite Cape Minerals Google Search for Alluaivite Dakota Matrix Minerals Google Search for Alluaivite Excalibur Mineral Corp. Google Search for Alluaivite Exceptional Minerals Google Search for Alluaivite John Betts Fine Minerals Search for Alluaivite McDougall Minerals Google Search for Alluaivite Mineral News Website Link Rock and Mineral Shows Google Search for Alluaivite Weinrich Minerals, Inc. Google Search for Alluaivite Ask about Alluaivite here : Print or Cut-and-Paste your Alluaivite Specimen Label here :
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