Yttrocolumbite-(Y)
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Formula:
Y(U4+,Fe2+)Nb2O8
Hardness:
5 - 6
Name:
Named after its chemical composition containing yttrium and its similarity to Columbite.
This page provides mineralogical data about Yttrocolumbite-(Y).
Classification of Yttrocolumbite-(Y)
Approved, 'Grandfathered' (first described prior to 1959)
4/D.19-80
4.DB.25
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
8.1.3.2
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
18.4.2
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
Physical Properties of Yttrocolumbite-(Y)
Hardness (Mohs):
5 - 6
Optical Data of Yttrocolumbite-(Y)
Type:
Biaxial (+)
Dispersion:
extreme
Chemical Properties of Yttrocolumbite-(Y)
Formula:
Y(U4+,Fe2+)Nb2O8
IMA Formula:
(Y,U,Fe2+)(Nb,Ta)O4
Common Impurities:
Ta
Relationship of Yttrocolumbite-(Y) to other Species
| 4.DB.05 | Argutite | GeO2 |
| 4.DB.05 | Cassiterite | SnO2 |
| 4.DB.05 | Plattnerite | PbO2 |
| 4.DB.05 | Pyrolusite | MnO2 |
| 4.DB.05 | Rutile | TiO2 |
| 4.DB.05 | Tripuhyite | Fe3+Sb5+O4 |
| 4.DB.05 | Tugarinovite | MoO2 |
| 4.DB.05 | Varlamoffite | (Sn,Fe)(O,OH)2 |
| 4.DB.10 | Byströmite | MgSb2O6 |
| 4.DB.10 | Tapiolite-(Fe) | (Fe,Mn)(Ta,Nb)2O6 |
| 4.DB.10 | Tapiolite-(Mn) | (Mn,Fe)(Ta,Nb)2O6 |
| 4.DB.10 | Ordoñezite | ZnSb2O6 |
| 4.DB.15b | Akhtenskite | ε-Mn4+O2 |
| 4.DB.15c | Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| 4.DB.15a | Paramontroseite | V4+O2 |
| 4.DB.15a | Ramsdellite | Mn4+O2 |
| 4.DB.20 | Scrutinyite | α-PbO2 |
| 4.DB.25 | Ishikawaite | U4+Fe2+Nb2O8 |
| 4.DB.25 | Ixiolite | (Ta,Nb,Sn,Fe,Mn)4O8 |
| 4.DB.25 | Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
| 4.DB.25 | Srilankite | ZrTi2O6 |
| 4.DB.25 | Calciosamarskite | (Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8 |
| 4.DB.25 | Samarskite-(Yb) | (Yb,Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
| 4.DB.30 | Ferberite | FeWO4 |
| 4.DB.30 | Hübnerite | MnWO4 |
| 4.DB.30 | Sanmartinite | (Zn,Fe)WO4 |
| 4.DB.30 | Krasnoselskite | CoWO4 |
| 4.DB.30 | Heftetjernite | ScTaO4 |
| 4.DB.30 | Huanzalaite | MgWO4 |
| 4.DB.35 | Columbite-(Fe) | FeNb2O6 |
| 4.DB.35 | Tantalite-(Fe) | FeTa2O6 |
| 4.DB.35 | Columbite-(Mn) | (Mn,Fe)(Nb,Ta)2O6 |
| 4.DB.35 | Tantalite-(Mn) | MnTa2O6 |
| 4.DB.35 | Columbite-(Mg) | (Mg,Fe,Mn)(Nb,Ta)2O6 |
| 4.DB.35 | Qitianlingite | (Fe,Mn)2(Nb,Ta)2WO10 |
| 4.DB.35 | Magnocolumbite | (Mg,Fe,Mn)(Nb,Ta)2O6 |
| 4.DB.35 | Tantalite-(Mg) | (Mg,Fe2+)(Ta,Nb)2O6 |
| 4.DB.40 | Ferrowodginite | Fe2+Sn4+Ta2O8 |
| 4.DB.40 | Lithiotantite | LiTa3O8 |
| 4.DB.40 | Lithiowodginite | LiTa3O8 |
| 4.DB.40 | Titanowodginite | Mn2+TiTa2O8 |
| 4.DB.40 | Wodginite | Mn2+Sn4+Ta2O8 |
| 4.DB.40 | Ferrotitanowodginite | Fe2+TiTa2O8 |
| 4.DB.40 | Wolframowodginite | Mn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8 |
| 4.DB.45 | Tivanite | V3+TiO3(OH) |
| 4.DB.50 | Carmichaelite | (Ti,Cr,Fe)[O2-x(OH)x] |
| 4.DB.55 | Alumotantite | AlTaO4 |
| 4.DB.60 | Biehlite | ((Sb,As)O)2[MoO4] |
| 18.4.1 | Uranpyrochlore (of Hogarth 1977) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
| 18.4.3 | Yttrotantalite-(Y) | (Y,U4+,Fe2+)(Ta,Nb)(O,OH)4 |
| 18.4.4 | Ishikawaite | U4+Fe2+Nb2O8 |
| 18.4.5 | Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| 18.4.6 | Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| 18.4.7 | Kobeite-(Y) | (REE,Fe,U)3 Zr(Ti,Nb)3 O12 |
| 18.4.8 | Polycrase-(Y) | Y(Ti,Nb)2(O,OH)6 |
| 18.4.9 | Yttropyrochlore (of Hogarth 1977) | A2Nb2(O,OH)6Z |
| 18.4.10 | Calciobetafite (of Mazzi & Munno) | (Ca,Na)2(Nb,Ti)2(O,OH)7 |
| 18.4.11 | Yttrobetafite (of Hogarth 1977) | A2-mB2X6-wY1-n |
| 18.4.12 | Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
Other Names for Yttrocolumbite-(Y)
Name in Other Languages:
German:Yttrocolumbit-(Y)
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.
References for Yttrocolumbite-(Y)
Reference List:
Mem.Acad.Cien. Lisboa (1937), 1, 369
Internet Links for Yttrocolumbite-(Y)
mindat.org URL:
https://www.mindat.org/min-4369.html
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Localities for Yttrocolumbite-(Y)
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
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(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Brazil | |
| elluso, L., Guarino, V., Lustrino, M., Morra, V., De' Gennaro, R. (2016): The REE- and HFSE-bearing phases in the Itatiaia Alkaline Complex (Brazil), and geochemical evolution of feldspar-rich felsic melts. Mineralogical Magazine: 80: (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12839&sid=298fa3a883df3b6a74caf0dae5778cc7 (2016) |
Italy | |
| Lapis, 19 (10), 15-21+86. |
USA | |
| Minerals of Colorado (1997) E.B. Eckels |
|
Spruce Pine District, Mitchell Co., North Carolina, USA