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Wodginite Mineral Data
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General Wodginite Information
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 Chemical Formula: |
Mn++(Sn,Ta)(Ta,Nb)2O8 |
| Composition: |
Molecular Weight = 635.06 gm |
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Tantalum 56.99 % Ta 69.58 % Ta2O5 |
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Manganese 8.65 % Mn 11.17 % MnO |
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Niobium 5.85 % Nb 8.37 % Nb2O5 |
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Iron 0.88 % Fe 1.26 % Fe2O3 |
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Tin 7.48 % Sn 9.49 % SnO2 |
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Oxygen 20.15 % O |
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______ ______ |
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100.00 % 99.87 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+Ta0.4Sn0.4Fe3+0.1Ta1.6Nb0.4O8 |
| Environment: |
Complex zoned pegmatite in amphibolite. |
| IMA Status: |
Approved IMA 1963 |
| Locality: |
Wodgina, Marble Bar, and Greenbushes, Western Australia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Wodginite + Pronunciation  |
| Synonym: |
ICSD 67677 |
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PDF 29-901 |
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Wodginite Image |
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Images:
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Wodginite
Comments: Dark, lustrous crystal of wodginite.
Location: Sapucaia do Norte, Galileia, Minas Gerais, Brazil.
Scale: 1.3 x 0.7 cm.
© John Veevaert |
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Wodginite Crystallography
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| Axial Ratios: |
a:b:c =0.8299:1:0.4446 |
| Cell Dimensions: |
a = 9.52, b = 11.47, c = 5.1, Z = 4; beta = 91.3° V = 556.75 Den(Calc)= 7.58 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c |
| X Ray Diffraction: |
By Intensity(I/Io): 3(1), 2.95(0.7), 3.67(0.7), |
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Physical Properties of Wodginite
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| Cleavage: |
None |
| Color: |
Dark brown, Reddish brown, Black, Black brown. |
| Density: |
7.19 - 7.36, Average = 7.27 |
| Fracture: |
Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern. |
| Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Habit: |
Pyramidal - Crystals are shaped like pyramids. |
| Hardness: |
5.5 - Knife Blade |
| Luster: |
Sub Metallic |
| Streak: |
brown |
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Optical Properties of Wodginite
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| Optical Data: |
NCalc= 2.27 - from Gladstone-Dale relationship (KC = 0.167) where Ncalc=Dcalc*KC+1
NCalc= 2.22 - from Gladstone-Dale relationship (KC = 0.167) where Ncalc=Dmeas*KC+1 |
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Calculated Properties of Wodginite
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| Electron Density: |
Bulk Density (Electron Density)=6.54 gm/cc
note: Specific Gravity of Wodginite =7.58 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEWodginite = 716.28 barns/electron
U=PEWodginite x rElectron Density=4,685.05 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wodginite is Not Radioactive |
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Wodginite Classification
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| Dana Class: |
08.01.08.01 (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 Wodginite Information
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| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Wodginite :
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
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Wodginite
Mn++(Sn,Ta)(Ta,Nb)2O8
Dana No: 08.01.08.01 Strunz No: 04.DB.40
Locality:
Notes:
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