General Alumotungstite Information![]() (W,Al)(O,OH)3 (?) |
![]() Molecular Weight = 216.36 gm |
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Aluminum 1.25 % Al 2.36 % Al2O3 |
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Hydrogen 0.09 % H 0.83 % H2O |
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Tungsten 76.48 % W 96.44 % WO3 |
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Oxygen 22.18 % O |
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100.00 % 99.63 % = TOTAL OXIDE |
![]() W0.9Al0.1O2.8(OH)0.2 |
![]() Originally reported as the aluminum analog of ferritungstite. |
![]() Approved IMA 1971 |
![]() Kramat Pulai mine, Kinta district, Perak, Malaysia. Link to MinDat.org Location Data. |
![]() Named for the composition. |
![]() Alumotungstite + Pronunciation |
![]() | | Alumotungstite Image
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Alumotungstite Crystallography![]() a = 10.2, Z = 8; V = 1,061.21 Den(Calc)= 2.71 |
![]() IsometricSpace Group: Unk |
| Physical Properties of Alumotungstite![]() Greenish yellow. |
![]() Microscopic Crystals - Crystals visible only with microscopes. |
![]() yellow |
| Optical Properties of Alumotungstite![]() CI calc= -0.924 (Poor) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.3321,KC= 0.1726 Ncalc = 1.47 ![]() Isotropic, n=1.9. |
| Calculated Properties of Alumotungstite![]() Bulk Density (Electron Density)=2.31 gm/cc |
note: Specific Gravity of Alumotungstite =2.71 gm/cc. ![]() Fermion Index = 0.1 |
Boson Index = 0.9 ![]() PEAlumotungstite = 969.30 barns/electron |
U=PEAlumotungstite x rElectron Density=2,236.32 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Alumotungstite is Not Radioactive | Alumotungstite Classification![]() 04.05.04.01 (04)Simple Oxides |
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(04.05)with a cation charge of 6+ (A++++++ O3) |
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(04.05.04)Dana Group |
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![]() 04.DH.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.D - Metal:Oxygen = 1:2 and similar |
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04.DH -With large (± medium-sized) cations; sheets of edge-sharing octahedra |
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| Other Alumotungstite Information![]() NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
![]() Links to other databases for Alumotungstite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Alumotungstite using: Visit our Advertisers for Alumotungstite : A Bijoux Google Search for AlumotungstiteAdam's Minerals Google Search for Alumotungstite Cape Minerals Google Search for Alumotungstite Dakota Matrix Minerals Google Search for Alumotungstite Excalibur Mineral Corp. Google Search for Alumotungstite Exceptional Minerals Google Search for Alumotungstite John Betts Fine Minerals Search for Alumotungstite McDougall Minerals Google Search for Alumotungstite Mineral News Website Link Rock and Mineral Shows Google Search for Alumotungstite Weinrich Minerals, Inc. Google Search for Alumotungstite Ask about Alumotungstite here : Print or Cut-and-Paste your Alumotungstite Specimen Label here :
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