| Bykovaite Mineral Data |
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- 56.4.2.1 Bornemanite BaNa3{(Na,Ti)4[(Ti,Nb)2O2Si4O14](F,OH)2}·PO4 I11b m
- 56.4.2.2 Bykovaite ! BaNa{(Na,Ti)4[(Ti,Nb)2(OH,O)3Si4O14](OH,F)2}·3(H2O) I11b 2
General Bykovaite Information |
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 Chemical Formula: |
BaNa{(Na,Ti)4[(Ti,Nb)2(OH,O)3Si4O14](OH,F)2}·3(H2O) | ||
| Composition: |
Molecular Weight = 870.74 gm | ||
| Barium 15.77 % Ba 17.61 % BaO | |||
| Sodium 10.56 % Na 14.24 % Na2O | |||
| Titanium 13.75 % Ti 22.93 % TiO2 | |||
| Niobium 5.33 % Nb 7.63 % Nb2O5 | |||
| Silicon 12.90 % Si 27.60 % SiO2 | |||
| Hydrogen 1.09 % H 9.72 % H2O | |||
| Oxygen 39.51 % O | |||
| Fluorine 1.09 % F 1.09 % F | |||
| - % F -0.46 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.37 % = TOTAL OXIDE | |||
| Empirical Formula: |
BaNaNa3TiTi1.5Nb0.5(OH)1.9O1.1Si4O14(OH)1.5F0.5·3(H2O) | ||
| Environment: |
Heterophyllosilicate | ||
| IMA Status: |
Proposed IMA 2003 (Dana # Added) | ||
| Locality: |
Alluaiv, Lovozero Massif, Kola, Russia Link to MinDat.org Location Data. | ||
| Name Origin: |
Commission on New Minerals and Mineral Names (CNMMN) | ||
| Synonym: |
IMA2003-044 | ||
Search for Bykovaite Images | |||
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Images:
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Bykovaite Crystallography |
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| Axial Ratios: |
a:b:c =0.7733:1:7.0956 | ||
| Cell Dimensions: |
a = 5.552, b = 7.179, c = 50.94, Z = 4; V = 2,030.36 Den(Calc)= 2.85 | ||
| Crystal System: |
Monoclinic - SphenoidalH-M Symbol (2) Space Group: I11b | ||
| X Ray Diffraction: |
By Intensity(I/Io): 25.5(1), 3.17(0.74), 8.48(0.72),2.763(0.2), 2.11(0.14), 3.44(0.14), 12.68(0.14), 5.11(0.11), | ||
Physical Properties of Bykovaite |
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| Color: |
Creamy yellow, Pale yellow. | ||
| Diaphaniety: |
Semitransparent | ||
| Luster: |
Silky | ||
Optical Properties of Bykovaite |
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| Gladstone-Dale: |
CI calc= 0.042 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2406,KC= 0.2512 |
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| Optical Data: |
Biaxial (+), a=1.668, b=1.679, g=1.71, bire=0.0420 | ||
Calculated Properties of Bykovaite |
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| Electron Density: |
relectron=2.73 gm/cc |
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| Fermion Index |
Fermion Index = 0.05209 Boson Index = 0.94791 |
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| Photoelectric: |
PEBykovaite = 76.81 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bykovaite is Not Radioactive |
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Bykovaite Classification |
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| Dana Class: |
56.4.2.2 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O | ||
| (56.4)with [Si2O7] with phosphate, water | |||
| (56.4.2)Dana Group | |||
| Strunz Class: |
VIII/CX.00-00 VIII - Silicates | ||
| VIII/CX - Unclassified Strunz Sorosilicates | |||
| VIII/CX.00 - Sorosilicate | |||
Other Bykovaite Information |
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| See Also: |
Links to other databases for Bykovaite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas Search for Bykovaite using: Visit our Advertisers for Bykovaite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals T G Fine Minerals Wrights Rock Shop Translate Bykovaite Mineral Data : Ask about Bykovaite here : Print or Cut-and-Paste your Bykovaite Specimen Label here :
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