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Tantalowodginite

Additional Functions

Collectors Summary

Crystal System monoklin, C2/c

Chemism

Chem­ical formula

(Mn2+,☐)TaTa2O8

Chem­ical com­po­si­tion

Mangan, Tantal, Sauerstoff, Vakanz

Unit weight: 712.0427074275 u; Number of atoms in the formula: 12

Info

Empirical formula:

(Mn0.75Vc0.25)TaTa2O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Vacancy

Vc

0.00

0.25

2.08

0.0000000

0.0000000

Oxygen

O

17.98

8

66.67

15.9994300

127.9954400

Manganese

Mn

5.79

0.75

6.25

54.9380499

41.2035374

Tantalum

Ta

76.24

3

25.00

180.9479100

542.8437300

Anal­y­sis wt%

Nb2O5 : 12.28, Ta2O5 : 73.15, SnO2 : 5.80, MnO : 8.19, Li2O : 0.58 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

4.DB.40

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
B: Mit mittelgroßen [Kationen]: Ketten kantenverknüpfter Oktaeder
40:Wodginit-Gruppe

Lapis Clas­sifica­tion

IV/D.17-080

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Clas­sifica­tion by Hölzel

4.DH.290

4: OXIDES
D: Dioxides
H: Wolframite-Group

IMA sta­tus

anerkannt, Proposals Jan. 2018 CNMNC Newsletter 41

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Wodginite group

Optical Properties

RI value α / ω / n

2.0>

Ri mean

2.0>

2V angle

Biaxial

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

9.542(1)

Cell param­e­ters b (Å)

11.488(2)

Cell param­e­ters c (Å)

5.128(1)

Cell param­e­ters a/b or c/a

0.831

Cell param­e­ters c/b

0.446

Cell param­e­ters α

90°

Cell param­e­ters β

91.13(1)°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

562.014

Kristall struc­ture

Struktur bestimmt

X-Ray Pow­der Diffrac­tion

7.332(20), 4.741(20), 3.838(30), 3.667(100), 3.000(100), 2.957(100), 2.883(30), 1.778(30)

XRD chart Tantalowodginite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Density (g/cm³)

8.415 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

USA/Maine/Oxford Co./Greenwood/Uncle Tom Mountain/Emmons Quarry (Uncle Tom Mountain Quarry)

Type mate­r­ial

Typisches Material ist in den mineralogischen Sammlungen des Maine Mineral and Gem Museum, 99 Main Street, Bethel, Maine, USA, unter der Katalognummer MMGM-MP2-12-10-10-2016 hinterlegt.

Preface

Name from

der Zusammensetzung, entsprechend der Regeln für die Wodginit-Gruppe

Author (Name, Year)

S.L. Hanson, A.U. Falster, W.B. Simmons, R. Sprague, P. Vignola, N. Rotiroti, S. Andó, and F. Hatert (2018)

References

S.L. Hanson, A.U. Falster, W.B. Simmons, R. Sprague, P. Vignola, N. Rotiroti, S. Andó, and F. Hatert: Tantalowodginite, (Mn0.50.5) TaTa2O8, a new mineral species from the Emmons pegmatite, Uncle Tom Mountain, Main, U.S.A. Canadian Mineralogist Vol. 56, Nr. 4 (2018) S. 543–553.

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 xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Achalaite

(Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8

monoklin : 2/m : C2/c

4.DB.40

Wodginite

Mn2+Sn4+Ta2O8

monoklin : 2/m : C2/c

4.DB.40

Ekebergite

ThFeNb2O8

monoklin : 2/m : P2/c

4.DB.40

Lithiotantite

Li(Ta,Nb)3O8

monoklin : 2/m : P21/c

4.DB.40

Ferrowodginite

(Fe2+,Mn2+)(Sn,Ti,Fe3+,Ta)(Ta,Nb)2O8

monoklin : 2/m : C2/c

4.DB.40

Lithiowodginite

(Li,Mn,Fe)(Ta,Nb,Sn)3O8

monoklin : 2/m : C2/c

4.DB.40

Titanowodginite

(Mn2+,Fe2+)(Ti,Sn,Ta,Sc)(Ta,Nb)2O8

monoklin : 2/m : C2/c

4.DB.40

Tantalowodginite

(Mn2+,☐)TaTa2O8

monoklin : 2/m : C2/c

4.DB.40

Ferrotitanowodginite

(Fe2+,Mn2+)(Ti,Sn4+,Ta,Fe3+)(Ta,Nb)2O8

monoklin : 2/m : C2/c

4.DB.40

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Koragoite

Mn2+2Mn3+Nb2(Nb,Ta)3W2O20

monoklin : 2 : P21

IV/D.17-005

Qitianlingite

(Fe2+,Mn)2(Nb,Ta)2W6+O10

orthorhombisch : mmm : Pbcn

IV/D.17-010

Ixiolite

(Ta,Mn,Nb)O2

orthorhombisch : mmm : Pbcn

IV/D.17-030

Titanowodginite

(Mn2+,Fe2+)(Ti,Sn,Ta,Sc)(Ta,Nb)2O8

monoklin : 2/m : C2/c

IV/D.17-040

Wodginite

Mn2+Sn4+Ta2O8

monoklin : 2/m : C2/c

IV/D.17-050

Ferrotitanowodginite

(Fe2+,Mn2+)(Ti,Sn4+,Ta,Fe3+)(Ta,Nb)2O8

monoklin : 2/m : C2/c

IV/D.17-055

Ferrowodginite

(Fe2+,Mn2+)(Sn,Ti,Fe3+,Ta)(Ta,Nb)2O8

monoklin : 2/m : C2/c

IV/D.17-060

Lithiowodginite

(Li,Mn,Fe)(Ta,Nb,Sn)3O8

monoklin : 2/m : C2/c

IV/D.17-070

Tantalowodginite

(Mn2+,☐)TaTa2O8

monoklin : 2/m : C2/c

IV/D.17-080

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Ixiolite

(Ta,Mn,Nb)O2

orthorhombisch : mmm : Pbcn

4.DH.200

'Wolframo-ixiolite'

(Fe,Mn,Nb)(Nb,W,Ta)O4

monoklin : m : Pc

4.DH.210

'Ashanite'

(Nb,Ta,Fe,Mn,U)4O8

orthorhombisch : mmm : Pbcn

4.DH.230

Wodginite

Mn2+Sn4+Ta2O8

monoklin : 2/m : C2/c

4.DH.250

Ferrowodginite

(Fe2+,Mn2+)(Sn,Ti,Fe3+,Ta)(Ta,Nb)2O8

monoklin : 2/m : C2/c

4.DH.255

Lithiowodginite

(Li,Mn,Fe)(Ta,Nb,Sn)3O8

monoklin : 2/m : C2/c

4.DH.260

Lithiotantite

Li(Ta,Nb)3O8

monoklin : 2/m : P21/c

4.DH.270

Titanowodginite

(Mn2+,Fe2+)(Ti,Sn,Ta,Sc)(Ta,Nb)2O8

monoklin : 2/m : C2/c

4.DH.280

Ferrotitanowodginite

(Fe2+,Mn2+)(Ti,Sn4+,Ta,Fe3+)(Ta,Nb)2O8

monoklin : 2/m : C2/c

4.DH.285

Tantalowodginite

(Mn2+,☐)TaTa2O8

monoklin : 2/m : C2/c

4.DH.290

CNMNC (IMA)-Number

IMA 2017-095

CNMNC symbol

Symbol

Ttwdg

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Tantalowodginit
Google-Bilder-Suche - search for: Tantalowodginit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Tantalowodginit

English pages

Mindat - search for: Tantalowodginite
Webmineral - search for:Tantalowodginite
Handbook-of-Mineralogy - search for: Tantalowodginite
RRUFF - Raman, XRD and other mineral data - search for: Tantalowodginite
RRUFF - References and PDF downloads - search for: Tantalowodginite
American-Mineralogist-Crystal-Structure-Database - search for: Tantalowodginite
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German pages

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