Mineralogy Database

Wodginite Mineral Data

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General Wodginite Information

Help on Chemical  Formula: Chemical Formula: Mn++(Sn,Ta)(Ta,Nb)2O8
Help on Composition: Composition: Molecular Weight = 635.06 gm
   Tantalum   56.99 %  Ta   69.58 % Ta2O5
   Manganese   8.65 %  Mn   11.17 % MnO
   Niobium     5.85 %  Nb    8.37 % Nb2O5
   Iron        0.88 %  Fe    1.26 % Fe2O3
   Tin         7.48 %  Sn    9.49 % SnO2
   Oxygen     20.15 %  O
             ______        ______ 
             100.00 %       99.87 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+Ta0.4Sn0.4Fe3+0.1Ta1.6Nb0.4O8
Help on Environment: Environment: Complex zoned pegmatite in amphibolite.
Help on IMA Status: IMA Status: Approved IMA 1963
Help on Locality: Locality: Wodgina, Marble Bar, and Greenbushes, Western Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Wodginite + Pronunciation Say WODGINITE
Help on Synonym: Synonym: ICSD 67677
  PDF 29-901

Wodginite Image

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Comments: Dark, lustrous crystal of wodginite.
Location: Sapucaia do Norte, Galileia, Minas Gerais, Brazil. Scale: 1.3 x 0.7 cm.
© John Veevaert

Wodginite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8299:1:0.4446
Help on Cell Dimensions: Cell Dimensions: a = 9.52, b = 11.47, c = 5.1, Z = 4; beta = 91.3° V = 556.75 Den(Calc)= 7.58
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3(1), 2.95(0.7), 3.67(0.7),

Physical Properties of Wodginite

Help on Cleavage: Cleavage: None
Help on Color: Color: Dark brown, Reddish brown, Black, Black brown.
Help on Density: Density: 7.19 - 7.36, Average = 7.27
Help on Fracture: Fracture: Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Pyramidal - Crystals are shaped like pyramids.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: brown

Optical Properties of Wodginite

Help on Optical Data: 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

Calculated Properties of Wodginite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.54 gm/cc
note: Specific Gravity of Wodginite =7.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEWodginite = 716.28 barns/electron
U=PEWodginite x rElectron Density=4,685.05 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wodginite is Not Radioactive

Wodginite Classification

Help on  Dana Class: Dana Class: (08)Multiple Oxides with Nb, Ta, and Ti
  (08.01)where A BO4
  (08.01.08)Wodginite Group Wodginite Mn(Sn,Ta)(Ta,Nb)2O8 C 2/c 2/m Ferrowodginite FeSnTa2O8 C 2/c 2/m Titanowodginite (Mn,Fe)(Ti,Sn)(Ta,Nb)2O8 C 2/c 2/m Lithiowodginite LiTa3O8 C 2/c 2/m Ferrotitanowodginite! FeTiTa2O8 C 2/m 2/m IMA2000-026! (Mn,Li)4(Ta,Sn)4(Ta,Nb)8O32 C 2/c 2/m
Help on  Strunz Class: Strunz Class: 04.DB.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DB -With medium-sized cations; chains of edge-sharing octahedra
04.DB.40 Ferrowodginite FeSnTa2O8 C 2/c 2/m
04.DB.40 Lithiotantite Li(Ta,Nb)3O8 P 21/c 2/m
04.DB.40 Lithiowodginite LiTa3O8 C 2/c 2/m
04.DB.40 Tantalowodginite* (Mn2,[])4Ta4Ta8O32 C 2/c 2/m
04.DB.40 Titanowodginite (Mn,Fe)(Ti,Sn)(Ta,Nb)2O8 C 2/c 2/m
04.DB.40 Wodginite Mn(Sn,Ta)(Ta,Nb)2O8 C 2/c 2/m
04.DB.40 Ferrotitanowodginite! FeTiTa2O8 C 2/m 2/m

Other Wodginite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: 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

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Dana No: Strunz No: 04.DB.40





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