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Wodginite
A valid IMA mineral species
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About Wodginite
Formula:
Mn2+Sn4+Ta2O8
Colour:
Red-brown, dark brown to black
Lustre:
Sub-Metallic
Hardness:
5½
Specific Gravity:
7.19 - 7.36
Crystal System:
Monoclinic
Member of:
Name:
Named after one of its discovery localities, Wodgina, Marble Bar, Western Australia, Australia.
Unique Identifiers
Mindat ID:
4302
Long-form identifier:
mindat:1:1:4302:7
IMA Classification of Wodginite
Approved
IMA Formula:
Mn2+Sn4+Ta5+2O8
First published:
1963
Classification of Wodginite
4.DB.40
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
8.1.8.1
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
18.1.40
18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Wdg | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Wdg | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Wodginite
Sub-Metallic
Transparency:
Opaque
Colour:
Red-brown, dark brown to black
Hardness:
5½ on Mohs scale
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
7.19 - 7.36 g/cm3 (Measured)
Comment:
7.19 = Wodgina, Australia; 7.36 = Bernic Lake, Canada
Optical Data of Wodginite
Anisotropism:
Weak, stronger in oil
Colour in reflected light:
Greyish-white
Internal Reflections:
Many, when in oil
Pleochroism:
Not Visible
Comments:
Not visible in air, weakly visible in oil
Chemistry of Wodginite
Mindat Formula:
Mn2+Sn4+Ta2O8
Element Weights:
Elements listed:
Crystallography of Wodginite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 9.475(58) Å, b = 11.449(55) Å, c = 5.112(30) Å
β = 90.60(60)°
β = 90.60(60)°
Ratio:
a:b:c = 0.828 : 1 : 0.447
Unit Cell V:
554.52 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals commonly flattened, dipyramidal {111}, or prismatic
Twinning:
Very common, as penetration twins with {001} or {100} as the composition plane.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005133 | Wodginite | Ferguson R B, Hawthorne F C, Grice J D (1976) The crystal structures of tantalite, ixiolite and wodginite from Bernic lake, Manitoba II. Wodginite The Canadian Mineralogist 14 550-560 |  | 1976 | Bernic lake, Manitoba, Canada | 0 | 293 |
| 0005278 | Wodginite | Ercit T S, Hawthorne F C, Cerny P (1992) The wodginite group. I. Structural crystallography The Canadian Mineralogist 30 597-611 | | 1992 | 0 | 293 | |
| 0005277 | Wodginite | Ercit T S, Hawthorne F C, Cerny P (1992) The wodginite group. I. Structural crystallography The Canadian Mineralogist 30 597-611 | | 1992 | 0 | 293 | |
| 0005276 | Wodginite | Ercit T S, Hawthorne F C, Cerny P (1992) The wodginite group. I. Structural crystallography The Canadian Mineralogist 30 597-611 | | 1992 | 0 | 293 | |
| 0000419 | Wodginite | Graham J, Thornber M R (1974) The crystal chemistry of complex niobium and tantalum oxides II. Composition and structure of wodginite from Wodgina, Australia American Mineralogist 59 1040-1044 | | 1974 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.00 Å | (100) |
| 3.67 Å | (70) |
| 2.95 Å | (70) |
| 2.50 Å | (29) |
| 1.774 Å | (27) |
| 2.87 Å | (25) |
| 2.55 Å | (21) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Wodginite
Co-Type Localities:
Place of Conservation of Type Material:
Geological Survey, Perth, 8492;
Western Australian Museum, Perth, Australia, S388B;
Canadian Geological Survey, Ottawa, 12200;
Royal Ontario Museum, Toronto, Canada, M25655.
Western Australian Museum, Perth, Australia, S388B;
Canadian Geological Survey, Ottawa, 12200;
Royal Ontario Museum, Toronto, Canada, M25655.
Geological Setting of Type Material:
Granite pegmatites
Associated Minerals at Type Locality:
Synonyms of Wodginite
Cassiterotantalite (in part)
Other Language Names for Wodginite
Varieties of Wodginite
Relationship of Wodginite to other Species
Member of:
Other Members of Wodginite Group:
| Achalaite | (Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8 | Mon. 2/m : B2/b |
| Ferrotitanowodginite | Fe2+TiTa2O8 | Mon. 2/m : B2/b |
| Ferrowodginite | Fe2+Sn4+Ta2O8 | Mon. 2/m : B2/b |
| Lithiotantite | LiTa3O8 | Mon. 2/m : P21/c |
| Lithiowodginite | LiTa3O8 | Mon. 2/m : B2/b |
| Sakhanaiskite | (Fe2+Ti)Nb2O8 | Mon. 2/m : P2/b |
| Tantalowodginite | (Mn2+0.5◻0.5)TaTa2O8 | Mon. 2/m : B2/b |
| Titanowodginite | Mn2+TiTa2O8 | Mon. 2/m : B2/b |
Common Associates
Associations Based on Photo Data:
| 27 photos of Wodginite associated with Quartz | SiO2 |
| 15 photos of Wodginite associated with Albite | Na(AlSi3O8) |
| 14 photos of Wodginite associated with Cassiterite | SnO2 |
| 13 photos of Wodginite associated with 'Cleavelandite' | Na(AlSi3O8) |
| 10 photos of Wodginite associated with Tantalowodginite | (Mn2+0.5◻0.5)TaTa2O8 |
| 5 photos of Wodginite associated with Lepidolite | |
| 5 photos of Wodginite associated with Microlite Group | A2-mTa2X6-wZ1-n |
| 4 photos of Wodginite associated with Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| 3 photos of Wodginite associated with Fluorapatite | Ca5(PO4)3F |
| 3 photos of Wodginite associated with Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
Related Minerals - Strunz-mindat Grouping
| 4.DB. | Tianhongqiite | CrTiO3(OH) |
| 4.DB. | Nioboheftetjernite | ScNbO4 |
| 4.DB. | Huangshanite | Fe3+TaO4 |
| 4.DB. | Nioboixiolite-(Mn2+) | (Nb0.67Mn2+0.33)O2 |
| 4.DB. | Sakhanaiskite | (Fe2+Ti)Nb2O8 |
| 4.DB. | Shakhdaraite-(Y) | ScYNb2O8 |
| 4.DB.05 | Varlamoffite | Sn1-xFexO2-x(OH) |
| 4.DB.05 | Argutite | GeO2 |
| 4.DB.05 | Cassiterite | SnO2 |
| 4.DB.05 | Rutile | TiO2 |
| 4.DB.05 | Plattnerite | PbO2 |
| 4.DB.05 | Tripuhyite | Fe3+Sb5+O4 |
| 4.DB.05 | Tugarinovite | MoO2 |
| 4.DB.05 | Pyrolusite | Mn4+O2 |
| 4.DB.10 | Byströmite | MgSb2O6 |
| 4.DB.10 | Ordoñezite | ZnSb2O6 |
| 4.DB.10 | Tredouxite | NiSb2O6 |
| 4.DB.10 | Tapiolite-(Mn) | Mn2+Ta2O6 |
| 4.DB.10 | Tapiolite-(Fe) | Fe2+Ta2O6 |
| 4.DB.15a | Paramontroseite | V4+O2 |
| 4.DB.15a | Ramsdellite | Mn4+O2 |
| 4.DB.15b | Akhtenskite | ε-Mn4+O2 |
| 4.DB.15c | Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| 4.DB.20 | Scrutinyite | α-PbO2 |
| 4.DB.20 |
Ognevka Ta deposit, Ulan District, East Kazakhstan Region, Kazakhstan