Alumotungstite (original) (raw)
About AlumotungstiteHide
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Name:
For its aluminium content and by analogy to ferritungstite.
Unique IdentifiersHide
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Mindat ID:
160 (as Alumotungstite)
27428 (as Hydrokenoelsmoreite)
Long-form identifier:
mindat:1:1:160:7 (as Alumotungstite)
mindat:1:1:27428:5 (as Hydrokenoelsmoreite)
fd2e6713-b9d7-4367-9da0-3946fd2e1edd (as Alumotungstite)
46ac720e-8531-4625-a6bf-8d808a6b8200 (as Hydrokenoelsmoreite)
IMA Classification of AlumotungstiteHide
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Approval history:
Approved IMA 1971.
Discredited (Atencio et al. 2013, 2012 IMA Report)
Classification of AlumotungstiteHide
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4.DH.15 va
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
7.15.8
7 : Oxides and Hydroxides
15 : Oxides of Mo and W
Pronunciation of AlumotungstiteHide
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Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Sorry, your browser doesn't support HTML5 audio. | Jolyon Ralph | United Kingdom |
Physical Properties of AlumotungstiteHide
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Transparency:
Transparent, Translucent
Optical Data of AlumotungstiteHide
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Comments:
commonly weakly anisotropic; n = 1.935, birefringence 0.02
Chemistry of AlumotungstiteHide
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Mindat Formula:
◻2W2O6(H2O)
Crystallography of AlumotungstiteHide
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Class (H-M):
m_3_m _(_4/_m_32/m ) - Hexoctahedral
Cell Parameters:
a = 10.2 Å
Unit Cell V:
1,061.21 ų (Calculated from Unit Cell)
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
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Other Language Names for AlumotungstiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 4.DH. | Fluornatropyrochlore | (Na,Pb,Ca,REE,U)2Nb2O6F | Iso. m_3_m _(_4/_m_32/m ) |
|---|---|---|---|
| 4.DH. | Roméite Group | A2(Sb5+)2O6Z | |
| 4.DH. | Hydroxykenomicrolite | (◻,Na,Sb3+)2Ta2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH. | Fluornatroroméite | (Na,Ca)2Sb2(O,OH)6F | |
| 4.DH. | Oxyplumboroméite | Pb2Sb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH. | Cesiokenopyrochlore | ◻Nb2(O,OH)6(Cs,◻) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH. | Oxyyttrobetafite-(Y) | Y2Ti2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.05 | Brannerite | UTi2O6 | Mon. 2/m : _B_2/m |
| 4.DH.05 | Orthobrannerite | U4+U6+Ti4O12(OH)2 | Orth. |
| 4.DH.05 | Thorutite | (Th,U,Ca)Ti2(O,OH)6 | Mon. |
| 4.DH.10 | Kassite | CaTi2O4(OH)2 | Mon. 2/m : _P_21/b |
| 4.DH.10 | Lucasite-(Ce) | CeTi2(O,OH)6 | Mon. |
| 4.DH.15 | Bismutomicrolite (of Hogarth 1977) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m | |
| 4.DH.15 | Hydroplumboelsmoreite | (Pb,◻)(W,Fe3+)2O6 · H2O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydropyrochlore | (H2O,◻)2Nb2(O,OH)6(H2O) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Plumbomicrolite (of Hogarth 1977) | ||
| 4.DH.15 | Stibiomicrolite (of Groat et al.) | ||
| 4.DH.15 | Strontiopyrochlore (of Hogarth 1977) | A2Nb2(O,OH)6Z | |
| 4.DH.15 | Fluornatromicrolite | (Na1.5Bi0.5)Ta2O6F | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Bismutopyrochlore (of Chukanov et al.) | (Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH) | Amor. |
| 4.DH.15 | Hydrokenoelsmoreite | ◻2W2O6(H2O) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxycalciobetafite | Ca2(Ti,Nb)2O6O | |
| 4.DH.15 va | Yttromicrolite (of Hogarth) | (Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7 | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxynatropyrochlore | (Na,Ca,U)2Nb2O6(O,OH) | |
| 4.DH.15 | Hydroxycalciopyrochlore | (Ca,Na,U,◻)2(Nb,Ti)2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorcalciopyrochlore | (Ca,Na)2(Nb, Ti)2O6F | Iso. |
| 4.DH.15 | Oxycalciopyrochlore | Ca2Nb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorstrontiopyrochlore | (Sr,◻)2Nb2(O,OH)6F | |
| 4.DH.15 | Oxyplumbopyrochlore | Pb2Nb2O6O | |
| 4.DH.15 | Kenoplumbopyrochlore | (Pb,◻)Nb2O6(◻,O) | |
| 4.DH.15 | Oxyyttropyrochlore-(Y) | (Y,◻)2Nb2O6O | |
| 4.DH.15 | Fluorkenopyrochlore | (◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F | |
| 4.DH.15 | Oxyuranobetafite | (U,Ca,◻)2(Ti,Nb)2O6O | |
| 4.DH.15 | Oxycalciomicrolite | Ca2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxystannomicrolite | Sn2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Kenoplumbomicrolite | (Pb,◻)2Ta2O6(◻,OH,O) | Iso. |
| 4.DH.15 | Oxystibiomicrolite | (Sb3+,Ca)2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydromicrolite | (H2O,◻)2Ta2(O,OH)6(H2O) | |
| 4.DH.15 | Hydrokenomicrolite | (◻,H2O)2Ta2(O,OH)6(H2O) | Iso. m_3_m _(_4/_m_32/m ) |
| 4.DH.15 | Hydroxymanganopyrochlore | (Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) | Iso. m_3(2/m_3) |
| 4.DH.15 | Hydroxycalciomicrolite | Ca1.5Ta2O6(OH) | Iso. 432 : _P_4232 |
| 4.DH.15 | Fluorplumbopyrochlore | (Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6F | Iso. |
| 4.DH.15 | Hydroxyplumbopyrochlore | (Pb1.5◻0.5)Nb2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxynatromicrolite | (Na,Ca,U)2(Ta,Nb)2O6(O,F) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorhydropyrochlore | ||
| 4.DH.15 | Hydroxykenoelsmoreite | (◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH) | Trig. 3 : _R_3 |
| 4.DH.15 | Hydrokenopyrochlore | (◻,x)2Nb2O6(H2O,Cs) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydroxykenopyrochlore | (◻,Ce,Ba)2(Nb,Ti)2O6(OH,F) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydroxynatropyrochlore | (Na,Ca,Ce)2Nb2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydroxynatromicrolite | (Na,Bi3+,◻)2Ta2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Unnamed (Sb-analogue of Hydroxymanganopyrochlor) | (Mn,Ca,Y)2(Sb,Ti)2O6(OH) | |
| 4.DH.15 | Oxybismutomicrolite | (Bi1.33◻0.67)Σ2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Bindheimite | Pb2Sb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Hydroxycalcioroméite | (Ca,Sb3+)2(Sb5+,Ti)2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Monimolite | Pb2Sb5+2O7 | Iso. m_3_m _(_4/_m_32/m ) |
| 4.DH.20 | Cuproroméite | Cu2Sb2(O,OH)7 | Iso. |
| 4.DH.20 | Stetefeldtite | Ag2Sb2(O,OH)7 | Iso. |
| 4.DH.20 | Stibiconite | Sb3+Sb5+2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) |
| 4.DH.20 | Fluorcalcioroméite | (Ca,Na,◻)2Sb5+2(O,OH)6F | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Oxycalcioroméite | Ca2Sb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Hydroxyferroroméite | (Fe2+1.5◻0.5)Sb5+2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.25 | Rosiaite | PbSb5+2O6 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 4.DH.30 | Zirconolite | CaZrTi2O7 | Orth. |
| 4.DH.30 | Laachite | (Ca,Mn)2Zr2Nb2TiFeO14 | Mon. 2/m : _B_2/b |
| 4.DH.30 | Nöggerathite-(Ce) | (Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c a |
| 4.DH.30 | Stefanweissite | (Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c a |
| 4.DH.35 | Liandratite | U(Nb,Ta)2O8 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 4.DH.35 | Petscheckite | UFe(Nb,Ta)2O8 | Hex. |
| 4.DH.40 | Ingersonite | Ca3Mn2+Sb5+4O14 | Trig. 32 : _P_3121 |
| 4.DH.45 | Pittongite | Na0.22(W,Fe3+)(O,OH)3 · 0.44H2O | Hex. 6_m_2 : _P_6_m_2 |
| 4.DH.50 | Tazzoliite | Ba4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x) | Orth. m m m _(_2/_m_2/_m_2/m ) : F m m m |
Other InformationHide
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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 AlumotungstiteHide
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References for AlumotungstiteHide
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Reference List:
Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673
Localities for AlumotungstiteHide
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Locality ListHide
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