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Ferrotitanowodginite Mineral Data
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General Ferrotitanowodginite Information
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 Chemical Formula: |
Fe++TiTa2O8 |
| Composition: |
Molecular Weight = 593.62 gm |
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Tantalum 60.96 % Ta 74.44 % Ta2O5 |
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Titanium 8.07 % Ti 13.46 % TiO2 |
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Iron 9.41 % Fe 12.10 % FeO |
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Oxygen 21.56 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+TiTa2O8 |
| Environment: |
San El�as granitic pegmatite. Found as sub-millimeter domains in ferrowodginite. |
| IMA Status: |
Approved IMA 1999 (Dana # Added) |
| Locality: |
Found in the southern quarry, Sierra de la Estanzuela, departamento de Chacabuco, San Luis province, Argentina. Link to MinDat.org Location Data. |
| Name Origin: |
The name reflects its composition and relationship to wodginite. |
| Synonym: |
IMA1998-028 |
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Ferrotitanowodginite Crystallography
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| Axial Ratios: |
a:b:c =0.8259:1:0.4458 |
| Cell Dimensions: |
a = 9.403, b = 11.384, c = 5.075, Z = 4; beta = 90.55° V = 543.22 Den(Calc)= 7.26 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.963(1), 2.939(0.9), 3.626(0.7),1.715(0.5), 1.711(0.45), 1.759(0.45), 2.484(0.45), 1.447(0.4), |
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Physical Properties of Ferrotitanowodginite
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| Cleavage: |
None |
| Color: |
Very dark brown, Black. |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Irregular - Very brittle fracture producing irregular fragments |
| Habit: |
Inclusions - Generally found as inclusions in other minerals. |
| Hardness: |
5.5 - Knife Blade |
| Luster: |
Sub Metallic |
| Streak: |
dark brown |
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Optical Properties of Ferrotitanowodginite
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| Optical Data: |
NCalc= 2.37 - from Gladstone-Dale relationship (KC = 0.188) where Ncalc=Dcalc*KC+1
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Calculated Properties of Ferrotitanowodginite
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| Electron Density: |
Bulk Density (Electron Density)=6.31 gm/cc
note: Specific Gravity of Ferrotitanowodginite =7.26 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEFerrotitanowodginite = 726.85 barns/electron
U=PEFerrotitanowodginite x rElectron Density=4,586.96 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrotitanowodginite is Not Radioactive |
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Ferrotitanowodginite Classification
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| Dana Class: |
08.01.08.05 (08)Multiple Oxides with Nb, Ta, and Ti |
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(08.01)where A BO4 |
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(08.01.08)Wodginite Group |
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08.01.08.01 Wodginite Mn(Sn,Ta)(Ta,Nb)2O8 C 2/c 2/m |
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08.01.08.02 Ferrowodginite FeSnTa2O8 C 2/c 2/m |
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08.01.08.03 Titanowodginite (Mn,Fe)(Ti,Sn)(Ta,Nb)2O8 C 2/c 2/m |
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08.01.08.04 Lithiowodginite LiTa3O8 C 2/c 2/m |
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08.01.08.05 Ferrotitanowodginite! FeTiTa2O8 C 2/m 2/m |
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08.01.08.06 IMA2000-026! (Mn,Li)4(Ta,Sn)4(Ta,Nb)8O32 C 2/c 2/m |
| Strunz Class: |
04.DB.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.D - Metal:Oxygen = 1:2 and similar |
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04.DB -With medium-sized cations; chains of edge-sharing octahedra |
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04.DB.40 Ferrowodginite FeSnTa2O8 C 2/c 2/m |
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04.DB.40 Lithiotantite Li(Ta,Nb)3O8 P 21/c 2/m |
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04.DB.40 Lithiowodginite LiTa3O8 C 2/c 2/m |
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04.DB.40 Tantalowodginite* (Mn2,[])4Ta4Ta8O32 C 2/c 2/m |
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04.DB.40 Titanowodginite (Mn,Fe)(Ti,Sn)(Ta,Nb)2O8 C 2/c 2/m |
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04.DB.40 Wodginite Mn(Sn,Ta)(Ta,Nb)2O8 C 2/c 2/m |
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04.DB.40 Ferrotitanowodginite! FeTiTa2O8 C 2/m 2/m |
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Other Ferrotitanowodginite Information
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| References: |
NAME( CanMin, 8/99) PHYS. PROP.(MinRec, V 31, No. 2) |
| See Also: |
Links to other databases for Ferrotitanowodginite :
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 Ferrotitanowodginite Specimen Label here :
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Ferrotitanowodginite
Fe++TiTa2O8
Dana No: 08.01.08.05 Strunz No: 04.DB.40
Locality:
Notes:
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