Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Samarskite-(Yb)

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About Samarskite-(Yb)Hide

Formula:
YbFe3+(Nb,Ta)2O8
After the samarskite-(Y) redefinition (Britvin et al., 2019), with Fe as an essential and not substituting element, and considering data of Kjellman (2017), samarskite-(Yb) may either be a questionable species or a species stoichiometrically unrelated to samarskite-(Y).
Colour:
Black
Lustre:
Vitreous
Hardness:
5 - 6
Specific Gravity:
7.03
Crystal System:
Monoclinic
Name:
Named for being the Yb analogue of samarskite-(Y).
Samarskite Group. The Yb analogue of Samarskite-(Y) (?). Unique combination of elements.
One of just a few known Yb-dominant minerals, the other being keiviite-(Yb), hingganite-(Yb), xenotime-(Yb), and 'hellandite-(Yb)'.


Unique IdentifiersHide

Mindat ID:
27449
Long-form identifier:
mindat:1:1:27449:8
GUID
(UUID V4):
275570a5-89cf-408b-8e2b-9981ee9ee5ed

Classification of Samarskite-(Yb)Hide

Approved
Approval year:
2004
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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
Smk-YbIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Samarskite-(Yb)Hide

Vitreous
Transparency:
Opaque
Colour:
Black
Comment:
Nearly opaque.
Streak:
Brown to black
Hardness:
5 - 6 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
7.03(1) g/cm3 (Measured)    7.079 g/cm3 (Calculated)
Comment:
Measured density: unheated sample; calculated one: basing on the empirical formula.

Optical Data of Samarskite-(Yb)Hide

Type:
Isotropic
RI values:
n = > 2.1
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Moderate

Chemical Properties of Samarskite-(Yb)Hide

Formula:
YbFe3+(Nb,Ta)2O8

After the samarskite-(Y) redefinition (Britvin et al., 2019), with Fe as an essential and not substituting element, and considering data of Kjellman (2017), samarskite-(Yb) may either be a questionable species or a species stoichiometrically unrelated to samarskite-(Y).
IMA Formula:
YbNbO4
Idealised Formula:
(Yb,Ln,U,Th,Ca)(Nb,Ta)2O8
Common Impurities:
U,Th,Ca,Fe(II),Ta,Er,Y,Dy

Crystallography of Samarskite-(Yb)Hide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/b
Setting:
P2/c
Cell Parameters:
a = 5.688(9) Å, b = 9.915(2) Å, c = 5.199(9) Å
β = 93.16(10)°
Ratio:
a:b:c = 0.574 : 1 : 0.524
Unit Cell V:
292.76 ų
Z:
4
Twinning:
Not observed.
Comment:
Must have been heated to restore the structure; the above parameters are after heating to 1100oC for 12 hours.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.664 Å(21)
3.086 Å(25)
2.981 Å(100)
1.895 Å(12)
1.865 Å(20)
1.769 Å(15)
1.746 Å(12)
1.587 Å(20)
Comments:
From type description (heated sample).

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites

Type Occurrence of Samarskite-(Yb)Hide

General Appearance of Type Material:
Anhedral metamict masses, up to tens of centimeters in size, intergrown with columbite-(Fe) and zircon.
Place of Conservation of Type Material:
National Museum of Natural History (Smithsonian Institution_, Washington, D.C., USA, number NMNH 174442.
Geological Setting of Type Material:
Late-stage replacement units at the contact between core and margin of a pegmatite.
Associated Minerals at Type Locality:

Synonyms of Samarskite-(Yb)Hide

Other Language Names for Samarskite-(Yb)Hide

Relationship of Samarskite-(Yb) to other SpeciesHide

Other Members of this group:
Calciosamarskite(Ca,U4+)Fe3+(Nb,Ta,Ti)2O8Orth. mmm (2/m 2/m 2/m)
IshikawaiteU4+Fe2+Nb2O8Mon.
Samarskite-(Y)YFe3+Nb2O8Mon. 2/m : P2/b
Shakhdaraite-(Y)ScYNb2O8Mon. 2/m : P2/b
SrilankiteZrTi2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4Orth.

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Samarskite-(Yb) associated with Columbite-(Fe)Fe2+Nb2O6

Related Minerals - Strunz-mindat GroupingHide

4.DB.NioboheftetjerniteScNbO4Mon. 2/m : P21/b
4.DB.Shakhdaraite-(Y)ScYNb2O8Mon. 2/m : P2/b
4.DB.Nioboixiolite-(Mn2+)(Nb0.67Mn2+0.33)O2Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.Nioboixiolite-([])(Nb0.80.2)4+O2Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.05ArgutiteGeO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05CassiteriteSnO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05PlattneritePbO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05PyrolusiteMn4+O2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05RutileTiO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05TripuhyiteFe3+Sb5+O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05TugarinoviteMoO2Mon. 2/m : P21/b
4.DB.05Varlamoffite(Sn,Fe)(O,OH)2
4.DB.10ByströmiteMgSb2O6Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.DB.10Tapiolite-(Fe)Fe2+Ta2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.10Tapiolite-(Mn)Mn2+Ta2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.10OrdoñeziteZnSb2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.10TredouxiteNiSb2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.15bAkhtenskiteε-Mn4+O2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.DB.15cNsutite(Mn4+,Mn2+)(O,OH)2Hex.
4.DB.15aParamontroseiteV4+O2Orth. mmm (2/m 2/m 2/m)
4.DB.15aRamsdelliteMn4+O2Orth. mmm (2/m 2/m 2/m)
4.DB.20Scrutinyiteα-PbO2Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.25IshikawaiteU4+Fe2+Nb2O8Mon.
4.DB.25Samarskite-(Y)YFe3+Nb2O8Mon. 2/m : P2/b
4.DB.25SrilankiteZrTi2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.25Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
4.DB.25Calciosamarskite(Ca,U4+)Fe3+(Nb,Ta,Ti)2O8Orth. mmm (2/m 2/m 2/m)
4.DB.25Ixiolite-(Fe2+)(Ta0.67Fe2+0.33)O2Orth.
4.DB.25Ixiolite-(Mn2+)(Ta0.67Mn2+0.33)O2Orth.
4.DB.30FerberiteFeWO4Mon. 2/m : P2/b
4.DB.30HübneriteMnWO4Mon. 2/m : P2/b
4.DB.30Sanmartinite(Zn,Fe)WO4Mon. 2/m : P21/b
4.DB.30KrasnoselskiteCoWO4Mon.
4.DB.30HeftetjerniteScTaO4Mon. 2/m : P2/b
4.DB.30HuanzalaiteMgWO4Mon. 2/m : P2/b
4.DB.30 vaWolframite Group
4.DB.30Rossovskyite(Fe3+,Ta)(Nb,Ti)O4Mon. 2/m : P2/b
4.DB.35Columbite-(Fe)Fe2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Tantalite-(Fe)Fe2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Columbite-(Mn)Mn2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Tantalite-(Mn)Mn2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.
4.DB.35Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth. mmm (2/m 2/m 2/m)
4.DB.35Tantalite-(Mg)(Mg,Fe2+)(Ta,Nb)2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.40FerrowodginiteFe2+Sn4+Ta2O8Mon. 2/m : B2/b
4.DB.40LithiotantiteLiTa3O8Mon. 2/m : P21/b
4.DB.40LithiowodginiteLiTa3O8Mon. 2/m : B2/b
4.DB.40TitanowodginiteMn2+TiTa2O8Mon. 2/m : B2/b
4.DB.40WodginiteMn2+Sn4+Ta2O8Mon. 2/m : B2/b
4.DB.40FerrotitanowodginiteFe2+TiTa2O8Mon. 2/m : B2/b
4.DB.40Tantalowodginite(Mn2+0.50.5)TaTa2O8Mon. 2/m : B2/b
4.DB.40WolframowodginiteMn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8
4.DB.45TivaniteV3+TiO3(OH)Mon. 2/m : P21/b
4.DB.50Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]Mon. 2/m : P21/b
4.DB.55AlumotantiteAlTaO4Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.60Biehlite((Sb,As)O)2[MoO4]Mon. 2/m : B2/b

Fluorescence of Samarskite-(Yb)Hide

Non-fluorescent

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.

Internet Links for Samarskite-(Yb)Hide

References for Samarskite-(Yb)Hide

Reference List:

Localities for Samarskite-(Yb)Hide

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 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.
USA (TL)
 
  • Colorado
    • Jefferson County
      • South Platte Pegmatite Mining District
  • Montana
    • Big Horn County
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: March 28, 2024 17:12:58 Page updated: July 28, 2023 10:52:14
Go to top of page