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Ferronigerite-6N6S Mineral Data
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General Ferronigerite-6N6S Information
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Chemical Formula: |
(Fe++,Zn)4Sn2(Al,Fe+++)15O30(OH)2 |
Composition: |
Molecular Weight = 1,419.10 gm |
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Calcium 0.85 % Ca 1.19 % CaO |
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Manganese 0.39 % Mn 0.50 % MnO |
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Aluminum 27.95 % Al 52.81 % Al2O3 |
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Zinc 6.45 % Zn 8.03 % ZnO |
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Iron 11.02 % Fe 13.67 % FeO / 0.56 % Fe2O3 |
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Silicon 0.40 % Si 0.85 % SiO2 |
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Tin 16.73 % Sn 21.24 % SnO2 |
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Hydrogen 0.14 % H 1.27 % H2O |
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Oxygen 36.08 % O |
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______ ______ |
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100.00 % 100.11 % = TOTAL OXIDE |
Empirical Formula: |
Fe2+2.7Zn1.4Mn2+0.1Sn2Ca0.3Al14.7Si0.2Fe3+0.1O30(OH)2 |
Environment: |
Pegmatitic rocks. |
IMA Status: |
Approved IMA 2002 (Dana # Added) |
Locality: |
Nigeria, Africa. Link to MinDat.org Location Data. |
Name Origin: |
Named after its locality and FERRO (Iron). (S=Spinel, N=Nolanite Layers). |
Synonym: |
IMA2001-A |
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Nigerite-24R |
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Ferronigerite-6N6S Image |
Images:
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Ferronigerite-6N6S Crystallography
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Axial Ratios: |
a:c = 1:9.70331 |
Cell Dimensions: |
a = 5.73, c = 55.6, Z = 3; V = 1,580.94 Den(Calc)= 4.47 |
Crystal System: |
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m |
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Physical Properties of Ferronigerite-6N6S
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Cleavage: |
None |
Color: |
Brown, Reddish brown. |
Density: |
4.51 |
Diaphaneity: |
Opaque |
Fracture: |
Hackly - Jagged, torn surfaces, (e.g. fractured metals). |
Habit: |
Platy - Sheet forms (e.g. micas). |
Hardness: |
8.5 - Chrysoberyl |
Luster: |
Vitreous - Greasy |
Streak: |
grayish white |
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Optical Properties of Ferronigerite-6N6S
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Optical Data: |
Uniaxial (?). |
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NCalc= 1.85 - from Gladstone-Dale relationship (KC = 0.1894) where Ncalc=Dcalc*KC+1 NCalc= 1.85 - from Gladstone-Dale relationship (KC = 0.1894) where Ncalc=Dmeas*KC+1
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Calculated Properties of Ferronigerite-6N6S
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Electron Density: |
Bulk Density (Electron Density)=4.25 gm/cc note: Specific Gravity of Ferronigerite-6N6S =4.47 gm/cc. |
Fermion Index: |
Fermion Index = 0.03 Boson Index = 0.97 |
Photoelectric: |
PEFerronigerite-6N6S = 56.09 barns/electron U=PEFerronigerite-6N6S x rElectron Density= 238.57 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ferronigerite-6N6S is Not Radioactive |
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Ferronigerite-6N6S Classification
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Dana Class: |
07.11.08.02 (07)Multiple Oxides |
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(07.11)as titano-oxides with [4] and [6] substitutions |
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(07.11.08)Nigerite Group (Sn>Ti) |
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07.11.08.01 Ferronigerite-2N1S (Zn,Mg,Fe)(Sn,Zn)2(Al,Fe)12O22(OH)2 P 3m or P 3m1 3 2/m
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07.11.08.02 Ferronigerite-6N6S! (Fe,Zn)4Sn2(Al,Fe)15O30(OH)2 R 3m 3 2/m |
Strunz Class: |
04.FC.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FC -Hydroxides with OH, without H2O; corner-sharing octahedra |
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04.FC.20 Ferronigerite-6N6S! (Fe,Zn)4Sn2(Al,Fe)15O30(OH)2 R 3m 3 2/m |
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04.FC.20 Ferronigerite-2N1S (Zn,Mg,Fe)(Sn,Zn)2(Al,Fe)12O22(OH)2 P 3m or P 3m1 3 2/m |
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04.FC.20 Magnesionigerite-6N6S! (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 Unk Trig |
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04.FC.20 Magnesionigerite-2N1S (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 P 3m 3 2/m |
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Other Ferronigerite-6N6S Information
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References: |
NAME( Duda&Rejl90) PHYS. PROP.(Duda&Rejl90) OPTIC PROP.(AntBidBlaNic3) |
See Also: |
Links to other databases for Ferronigerite-6N6S :
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
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Print or Cut-and-Paste your Ferronigerite-6N6S Specimen Label here :
Ferronigerite-6N6S
(Fe++,Zn)4Sn2(Al,Fe+++)15O30(OH)2
Dana No: 07.11.08.02 Strunz No: 04.FC.20
Locality:
Notes:
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