Ferrowodginite Mineral Data

General Ferrowodginite Information

Chemical Formula:

Fe++SnTa2O8

Composition:

Molecular Weight = 664.45 gm

Tantalum 54.47 % Ta 66.51 % Ta₂O₅

Iron 8.41 % Fe 10.81 % FeO

Tin 17.87 % Sn 20.27 % SnO

Oxygen 19.26 % O

______ ______

100.00 % 97.59 % = TOTAL OXIDE

Empirical Formula:

Fe²⁺SnTa₂O₈

Environment:

Museum specimens from a granite pegmatite.

IMA Status:

Approved IMA 1992

Locality:

Sukula, Tammela, Finland, the exact locality now lost. Link to MinDat.org Location Data.

Name Origin:

Named for its content of FERROus iron and its relation to wodginite.

Name Pronunciation:

Ferrowodginite + Pronunciation

Synonym:

IMA1984-006

Ferrowodginite Image

Images:

Ferrowodginite

Comments: Dark brown massive ferrowodginite.
Location: Nyanga Number 2 Pegmatite, Ankole, Uganda. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrowodginite Crystallography

Axial Ratios:

a:b:c =0.8228:1:0.4378

Cell Dimensions:

a = 9.415, b = 11.442, c = 5.0103, Z = 4; beta = 90.8° V = 539.69 Den(Calc)= 8.18

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.97(1), 4.16(0.5), 2.493(0.4),

Physical Properties of Ferrowodginite

Cleavage:

None

Color:

Dark brown, Black.

Diaphaneity:

Transparent to Translucent

Hardness:

5.5 - Knife Blade

Luster:

Vitreous (Glassy)

Streak:

dark brown

Optical Properties of Ferrowodginite

Optical Data:

NCalc= 2.22 - from Gladstone-Dale relationship (KC = 0.1491) where Ncalc=Dcalc*KC+1

Calculated Properties of Ferrowodginite

Electron Density:

Bulk Density (Electron Density)=7.04 gm/cc
note: Specific Gravity of Ferrowodginite =8.18 gm/cc.

Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Photoelectric:

PE_{Ferrowodginite}= 711.51 barns/electron
U=PE_{Ferrowodginite} x rElectron Density=5,010.36 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrowodginite is Not Radioactive

Ferrowodginite Classification

Dana Class:

08.01.08.02 (08)Multiple Oxides with Nb, Ta, and Ti

(08.01)where A BO4

(08.01.08)Wodginite Group

08.01.08.01 Wodginite Mn(Sn,Ta)(Ta,Nb)2O8 C 2/c 2/m

08.01.08.02 Ferrowodginite FeSnTa2O8 C 2/c 2/m

08.01.08.03 Titanowodginite (Mn,Fe)(Ti,Sn)(Ta,Nb)2O8 C 2/c 2/m

08.01.08.04 Lithiowodginite LiTa3O8 C 2/c 2/m

08.01.08.05 Ferrotitanowodginite! FeTiTa2O8 C 2/m 2/m

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

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 Ferrowodginite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Bull.Miner.,Vol.107-111,1984-1988)

See Also:

Links to other databases for Ferrowodginite :
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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Print or Cut-and-Paste your Ferrowodginite Specimen Label here :

Ferrowodginite

Fe++SnTa2O8
Dana No: 08.01.08.02 Strunz No: 04.DB.40
Locality:

Notes: