Log InRegister
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 Educators
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
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Yttrotungstite-(Ce)

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About Yttrotungstite-(Ce)Hide

Formula:
(Ce,Nd,Y)W2O6(OH)3
Colour:
Orange-yellow
Hardness:
1
Specific Gravity:
6.23 (Calculated)
Crystal System:
Monoclinic
Name:
Named after its chemical composition containing yttrium and tungsten.
See also Yttrotungstite-(Y) and Unnamed (Nd-analogue of Yttrotungstite-(Ce)).

A rare secondary mineral occurring in the oxidised zones of tungsten deposits.


Classification of Yttrotungstite-(Ce)Hide

Approved
4.FD.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
D : Hydroxides with OH, without H2O; chains of edge-sharing octahedra
49.3.3.1

49 : HYDRATED MOLYBDATES AND TUNGSTATES
3 : Hydrated Molybdates and Tungstates Containing Hydroxyl or Halogen
27.4.7

27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates

Physical Properties of Yttrotungstite-(Ce)Hide

Colour:
Orange-yellow
Hardness:
Cleavage:
Perfect
On {100}, perfect.
Density:
6.23 g/cm3 (Calculated)
Comment:
Measured density not determined.

Optical Data of Yttrotungstite-(Ce)Hide

Type:
Biaxial
RI values:
nα = 1.890 nβ = 1.950 nγ = 2.020
Max Birefringence:
δ = 0.130
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v strong

Chemical Properties of Yttrotungstite-(Ce)Hide

Formula:
(Ce,Nd,Y)W2O6(OH)3
IMA Formula:
CeW2O6(OH)3

Crystallography of Yttrotungstite-(Ce)Hide

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
P21
Cell Parameters:
a = 5.874 Å, b = 8.7 Å, c = 7.07 Å
β = 105.45°
Ratio:
a:b:c = 0.675 : 1 : 0.813
Unit Cell V:
348.25 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals bladed, with forms {001}, {101}, {100}, {011}, and {110}; as parallel platy and radiating groups.
Twinning:
On {001}.
Comment:
Class either 2 or 2m; Space Group either P21 or P21/m.

Type Occurrence of Yttrotungstite-(Ce)Hide

Place of Conservation of Type Material:
University of Helsinki, Helsinki, Finland.

Synonyms of Yttrotungstite-(Ce)Hide

Other Language Names for Yttrotungstite-(Ce)Hide

Common AssociatesHide

Related Minerals - Nickel-Strunz GroupingHide

4.FD.05SpertiniiteCu(OH)2Orth.
4.FD.10BracewelliteCrO(OH)Orth. mmm (2/m 2/m 2/m)
4.FD.10DiasporeAlO(OH)Orth. mmm (2/m 2/m 2/m)
4.FD.10GroutiteMn3+O(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
4.FD.10GuyanaiteCrO(OH)Orth.
4.FD.10Montroseite(V3+,Fe3+)O(OH)Orth.
4.FD.10TsumgalliteGaO(OH)Orth.
4.FD.15ManganiteMn3+O(OH)Mon. 2/m : P21/b
4.FD.20Yttrotungstite-(Y)YW2O6(OH)3
4.FD.20Unnamed (Nd-analogue of Yttrotungstite-(Ce))(Nd,Ce,La)W2O6(OH)3
4.FD.25FrankhawthorneiteCu2Te6+O4(OH)2Mon.
4.FD.30KhinitePb2+Cu2+3[Te6+O6](OH)2Orth. mm2 : Fdd2
4.FD.30Khinite-3TPb2+Cu2+3Te6+O6(OH)2Trig. 3 : P32

Related Minerals - Dana Grouping (8th Ed.)Hide

49.3.3.2Yttrotungstite-(Y)YW2O6(OH)3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

27.4.1CuprotungstiteCu2(WO4)(OH)2Tet. 4 2 2 : P41 21 2
27.4.2ScheeliteCa(WO4)Tet. 4/m : I41/a
27.4.4AnthoiniteAlWO3(OH)3Tric. 1
27.4.5MpororoiteWAlO3(OH)3 · 2(H2O)
27.4.6Yttrotungstite-(Y)YW2O6(OH)3
27.4.8StolzitePb(WO4)Tet. 4/m : I41/a
27.4.9RaspitePb(WO4)Mon. 2/m : P21/b
27.4.10RusselliteBi2WO6Orth.
27.4.11PinalitePb3WO5Cl2Orth.
27.4.12Uranotungstite(Fe2+,Ba,Pb)(UO2)2(WO4)(OH)4 · 12H2OOrth.
27.4.13HübneriteMnWO4Mon. 2/m : P2/b
27.4.14FerberiteFeWO4Mon. 2/m : P2/b
27.4.15Wolframite(Fe2+)WO4 to (Mn2+)WO4Mon. 2/m : P2/b
27.4.16FerritungstiteIso. m3m (4/m 3 2/m) : Fd3m
27.4.17Phyllotungstite(H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
27.4.18Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth.

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 Yttrotungstite-(Ce)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Scrivenor and Shenton (1927) American Journal of Science: 13: 487 (as Thorotungstite).
Palache, C., Berman, H., & Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1097 (as Thorotungstite).
Canadian Mineralogist (1957): 6: 72.
Sahama, T.G., O. von Knorring, and M. Lehtinen (1970) Cerotungstite, a cerian analogue to yttrotungstite, from Uganda. Bull. Geol. Soc. Finland, 42, 223–228 (as Cerotungstite).
American Mineralogist (1972), 57, 1558–1559 (abstract).
Sahama, T.G. (1981) The secondary tungsten minerals, a review. Mineralogical Record, 12, 81–87.
Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (1997) Handbook of Mineralogy, Volume III. Halides, Hydroxides, Oxides. Mineral Data Publishing, Tucson, AZ, 628pp.: 11.

Internet Links for Yttrotungstite-(Ce)Hide

Localities for Yttrotungstite-(Ce)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 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.
Malaysia (TL)
 
  • Perak
    • Kinta District
      • Kramat Pulai
Scrivenor, J. B., & Shenton, J. C. (1927). Thorotungstite; a mineral containing tungsten and thorium from the Federated Malay States. American Journal of Science, (78), 487-490.; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1097.
Rwanda
 
  • Northern Province
    • Cyeru Commune
      • Gifurwe sector
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11
Uganda (TL)
 
  • Western Region
    • Kigezi District
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11
Mineral and/or Locality  
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 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: May 21, 2018 19:55:32 Page generated: May 1, 2018 07:54:10
Go to top of page