Tanteuxenite-(Y)
A valid IMA mineral species - grandfathered
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About Tanteuxenite-(Y)
Formula:
Y(Ta,Nb,Ti)2(O,OH)6
Colour:
Brown-black; amber-yellow (transmitted light)
Lustre:
Resinous
Hardness:
5½ - 6
Specific Gravity:
5.4 - 5.9
Crystal System:
Orthorhombic
Member of:
Name:
The name reflects its tantalum content and similarity to euxenite-(Y).
Type Locality:
Isostructural with:
This page provides mineralogical data about Tanteuxenite-(Y).
Unique Identifiers
Mindat ID:
3883
Long-form identifier:
mindat:1:1:3883:2
GUID
(UUID V4):
(UUID V4):
d6bd2db8-9421-4520-a7dd-5443b576429b
IMA Classification of Tanteuxenite-(Y)
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Y(TaTi)O6
Classification of Tanteuxenite-(Y)
4.DG.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
G : With large (+- 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
G : With large (+- medium-sized) cations; chains of edge-sharing octahedra
8.3.8.3
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
18.4.6
18 : Niobates and Tantalates
4 : Niobates and tantalates containing both U and rare earths
18 : Niobates and Tantalates
4 : Niobates and tantalates containing both U and rare earths
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Ttx-Y | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Tanteuxenite-(Y)
Resinous
Transparency:
Opaque
Comment:
transparent in thin fragments.
Colour:
Brown-black; amber-yellow (transmitted light)
Hardness:
5½ - 6 on Mohs scale
Tenacity:
Brittle
Fracture:
Sub-Conchoidal
Density:
5.4 - 5.9 g/cm3 (Measured)
Optical Data of Tanteuxenite-(Y)
Type:
Isotropic
Chemistry of Tanteuxenite-(Y)
Mindat Formula:
Y(Ta,Nb,Ti)2(O,OH)6
Crystallography of Tanteuxenite-(Y)
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcn
Setting:
Pbcn
Cell Parameters:
a = 14.574(3) Å, b = 5.555(1) Å, c = 5.184(4) Å
Ratio:
a:b:c = 2.624 : 1 : 0.933
Unit Cell V:
419.69 ų (Calculated from Unit Cell)
Z:
4
Comment:
metamict
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
26 : Hadean detrital minerals | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
34 : Complex granite pegmatites |
Type Occurrence of Tanteuxenite-(Y)
General Appearance of Type Material:
Crystals indistinct, tabular, to 5 cm, with {100} and {110} striated.
Place of Conservation of Type Material:
The Natural History Museum, London, England, 1928,340-341.
Reference:
Simpson E S (1928) Tanteuxenite (Sp.nov.) Pilbara Goldfield, N.W. Div.. Journal of the Royal Society of Western Australia 14, 45-48
Synonyms of Tanteuxenite-(Y)
Other Language Names for Tanteuxenite-(Y)
German:Tanteuxenit-(Y)
Relationship of Tanteuxenite-(Y) to other Species
Member of:
Other Members of this group:
Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Kobeite-(Y) | (Y,U)(Ti,Nb)2(O,OH)6 (?) | Iso. |
Loranskite-(Y) | (Y,Ce,Ca)ZrTaO6 (?) | |
Uranopolycrase | (U4+,Y)(Ti,Nb)2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Yttrocrasite-(Y) | (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 | Amor. |
Common Associates
Associated Minerals Based on Photo Data:
8 photos of Tanteuxenite-(Y) associated with Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
3 photos of Tanteuxenite-(Y) associated with Strüverite | (Ti,Ta,Fe)O2 |
3 photos of Tanteuxenite-(Y) associated with Albite | Na(AlSi3O8) |
1 photo of Tanteuxenite-(Y) associated with Fluorapatite | Ca5(PO4)3F |
1 photo of Tanteuxenite-(Y) associated with Yttrotantalite-(Y) | (Y,U,Fe2+)(Ta,Nb)(O,OH)4 |
1 photo of Tanteuxenite-(Y) associated with Microcline | K(AlSi3O8) |
1 photo of Tanteuxenite-(Y) associated with Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
1 photo of Tanteuxenite-(Y) associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
4.DG.05 | Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
4.DG.05 | Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
4.DG.05 | Kobeite-(Y) | (Y,U)(Ti,Nb)2(O,OH)6 (?) |
4.DG.05 | Loranskite-(Y) | (Y,Ce,Ca)ZrTaO6 (?) |
4.DG.05 | Uranopolycrase | (U4+,Y)(Ti,Nb)2O6 |
4.DG.05 | Yttrocrasite-(Y) | (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 |
4.DG.10 | Clinofergusonite-(Y) | YNbO4 |
4.DG.10 | Clinofergusonite-(Nd) | (Nd,Ce)NbO4 |
4.DG.10 | Clinofergusonite-(Ce) | CeNbO4 |
4.DG.10 | Yttrotantalite-(Y) | (Y,U,Fe2+)(Ta,Nb)(O,OH)4 |
4.DG.15 | Foordite | Sn2+Nb2O6 |
4.DG.15 | Thoreaulite | Sn2+Ta2O6 |
4.DG.20 | Raspite | Pb(WO4) |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Tanteuxenite-(Y)
mindat.org URL:
https://www.mindat.org/min-3883.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
References for Tanteuxenite-(Y)
Reference List:
Localities for Tanteuxenite-(Y)
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Australia | |
| The Simpson Mineral Collection of the ... |
| Pegmatites of Western Australia +3 other references |
Pegmatites of Western Australia +2 other references | |
| Simpson (1928) |
Jacobson et al. (2007) | |
Jacobson et al. (2007) | |
| Simpson (1928) +1 other reference |
| Peter Downes |
Austria | |
| Zappel (1986) +1 other reference |
Bulgaria | |
| Svetoslav Petrussenko et al. (2007) |
Canada | |
| Pe-Piper +1 other reference |
DR Congo | |
| www.africamuseum.be (n.d.) |
| Bernard et al. (2004) |
Italy | |
| Daniele Ravagnani - I giacimenti ... +3 other references |
| Piccoli et al. (2007) |
| Daniele Ravagnani - I giacimenti ... |
Piccoli et al. (2007) | |
Malawi | |
| Becker |
Sweden | |
| Pavel.M. Kartashov (n.d.) |
USA | |
| Fred E. Davis Collection |
| Buchholz et al. (2013) |
| Self-Collected by Franklin Roberts |
Quick NavTopAbout Tanteuxenite-(Y)Unique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Geological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Cooglegong pegmatite field, Shaw River District, East Pilbara Shire, Western Australia, Australia