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About TantalowodginiteHide

5 - 5½
Crystal System:
Member of:
Named for the composition.
The name tantalowodginite was earlier, in 1984, proposed for a new mineral in the wodginite group (Ercit et al. 1984). However this was formally retracted by the same authors recognizing that the type specimen was a Ta-rich wodginite and lithiowodginite (Ercit et al. 1992).
In 2018 IMA approved a new species with the name tantalowodginite.
This page provides mineralogical data about Tantalowodginite.

Classification of TantalowodginiteHide

Approved, Pending publication
Redefined by the IMA
Approval Year:
Approval History:
IMA No. 2017-095

Physical Properties of TantalowodginiteHide

5 - 5½ on Mohs scale

Chemical Properties of TantalowodginiteHide


Crystallography of TantalowodginiteHide

Crystal System:
Class (H-M):
2/m - Prismatic
Space Group:
Cell Parameters:
a = 9.542(1) Å, b = 11.488(2) Å, c = 5.128(1) Å
β = 91.13(1)°
a:b:c = 0.831 : 1 : 0.446
Unit Cell V:
562.01 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:

Type Occurrence of TantalowodginiteHide

Place of Conservation of Type Material:
Mineralogical collections of the Maine Mineral and Gem Museum, 99 Main Street, Bethel, Maine, USA, catalogue number MMGM-MP2-12-10-2016

Synonyms of TantalowodginiteHide

Other Language Names for TantalowodginiteHide

Relationship of Tantalowodginite to other SpeciesHide

Member of:
Other Members of this group:
Achalaite(Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8Mon. 2/m : B2/b

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for TantalowodginiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ercit, T. S., Černý, P., Hawthorne, F. C. (1984) Wodginite crystal chemistry. Geol. Soc. Am., Abstr. Programs 16, 502.
Ercit, T. S., Černý, P., Hawthorne, F. C (1992) The wodginite group. III. Classification and new species: The Canadian Mineralogist 30: 633-638
Hanson, S.L., Falster, A.U., Simmons, W.B., Sprague, R., Vignola, P., Rotiroti, N., Andó, S. and Hatert, F. (2018) Tantalowodginite, IMA 2017-095. CNMNC Newsletter No. 41, February 2018, page page 184; European Journal of Mineralogy: 30: 183-186

Internet Links for TantalowodginiteHide

Localities for TantalowodginiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Maine
    • Oxford Co.
      • Greenwood
        • Uncle Tom Mountain
Hanson, S.L., Falster, A.U., Simmons, W.B., Sprague, R., Vignola, P., Rotiroti, N., Andó, S. and Hatert, F. (2018) Tantalowodginite, IMA 2017-095. CNMNC Newsletter No. 41, February 2018, page page 184; European Journal of Mineralogy: 30: 183-186
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