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 EducatorsMindat Articles
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 CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Alumotungstite

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

About AlumotungstiteHide

Formula:
2W2O6(H2O)
Crystal System:
Isometric
Name:
For its aluminium content and by analogy to ferritungstite.
Previously considered to be a species, but now understood to be an aluminium-rich variety of hydrokenoelsmoreite.


Classification of AlumotungstiteHide

Discredited
Approval History:
Approved IMA 1971.
Discredited (Atencio et al. 2013, 2012 IMA Report)
7.15.8

7 : Oxides and Hydroxides
15 : Oxides of Mo and W

Pronounciation of AlumotungstiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of AlumotungstiteHide

Transparency:
Transparent, Translucent

Optical Data of AlumotungstiteHide

Type:
Isotropic
Comments:
commonly weakly anisotropic; n = 1.935, birefringence 0.02

Chemical Properties of AlumotungstiteHide

Formula:
2W2O6(H2O)

Crystallography of AlumotungstiteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 10.2 Å
Unit Cell V:
1,061.21 ų (Calculated from Unit Cell)
Z:
16
Morphology:
As octahedra, to 250 μm, may be flattened with a hexagonal outline, and as rounded groups of octahedra; zoned with a separable outer shell. In microcrystalline patches; intimately intergrown with yttrotungstite or ferritungstite.
Twinning:
interpenetrant octahedra may represent twins on {111}

Synonyms of AlumotungstiteHide

Other Language Names for AlumotungstiteHide

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.15.1TugarinoviteMoO2Mon.
7.15.2MolybditeMoO3Orth. mmm (2/m 2/m 2/m) : Pbcm
7.15.3SidwilliteMoO3 · 2H2OMon.
7.15.4IlsemanniteMo3O8 · nH2O
7.15.5TungstiteWO3 · H2OOrth.
7.15.6HydrotungstiteWO3 · 2H2OMon.
7.15.7MeymaciteWO3 · 2H2OAmor.
7.15.9JixianitePb(W,Fe3+)2(O,OH)7Iso. m3m (4/m 3 2/m) : Fd3m

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 AlumotungstiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Davis, R.J. and Smith, G.W. (1971) Yttrotungstite. Mineralogical Magazine: 38: 261-285.
Davis, R.J., Francis, J.G., and Reed, S.J.B. (1977) in: M. Fleischer. US Geol. Surv. Open-File Report 81-1169.
Sahama, T.G. (1981) The secondary tungsten minerals, a review. Mineralogical Record: 12: 81-87.
Anthony, J.W. et al. (1997) Handbook of Mineralogy, Vol. 3, 11.
Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., and Kartashov, P.M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist: 48: 673-698.
Christy, A.G. and Atencio, D. (2013) Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine: 77: 13-20.

Internet Links for AlumotungstiteHide

Localities for AlumotungstiteHide

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
 
  • Perak
    • Kinta District
      • Kramat Pulai
Bernard & Hyrsl (2004) Minerals and their Localities. (Granit, Prague)
Rwanda
 
  • Kigali City Province
    • Kigali
Dewaele, S., De Clercq, F., Hulsbosch, N., Piessens, K., Boyce, A., Burgess, R., & Muchez, P. (2016). Genesis of the vein-type tungsten mineralization at Nyakabingo (Rwanda) in the Karagwe–Ankole belt, Central Africa. Mineralium Deposita, 51(2), 283-307.
  • Northern Province
    • Cyeru Commune
      • Gifurwe sector
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11
Uganda
 
  • Western Region
    • Kigezi District
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11
Bernard & Hyrsl (2004) Minerals and their Localities. (Granit, Prague)
UK
 
  • England
    • Devon
      • Plymouth
        • Plympton
Bernard & Hyrsl (2004) Minerals and their Localities. (Granit, Prague); Steve Rust, Richard de Nul, and Gunnar Färber specimens.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, 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: March 22, 2019 12:15:05 Page generated: February 16, 2019 16:15:11
Go to top of page