[Newest Minerals] [Mineral Auctions] [Mineral Gallery] The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame Visa, PayPal, and Mastercard are Welcomed General Hydrotungstite InformationH2WO4•(H2O) |
Molecular Weight = 267.88 gm |
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Hydrogen 1.51 % H 13.45 % H2O |
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Tungsten 68.63 % W 86.55 % WO3 |
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Oxygen 29.86 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
H2(WO4)•(H2O) |
An alteration product of ferberite in the oxidized zone of a hydrothermal tungsten deposit, where it was an ore mineral. |
Valid Species (Pre-IMA) 1944 |
Oruro district, at the San Antonio de Calacalani mine, near Colquiri, and in the Juliani mine, Bolivia. Link to MinDat.org Location Data. |
Named for its content of H2O and relation to tungstite. |
Hydrotungstite + Pronunciation |
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Hydrotungstite Crystallographya:b:c =1.0765:1:0.5375 |
a = 7.45, b = 6.92, c = 3.72, Z = 2; beta = 90.5° V = 191.77 Den(Calc)= 4.64 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/m |
By Intensity(I/Io): 6.96(1), 3.26(0.4), 3.31(0.4), |
| Physical Properties of Hydrotungstite{010} Indistinct |
Yellow green, Dark green. |
4.6 |
2 - Gypsum |
Vitreous - Dull |
greenish yellow |
| Optical Properties of HydrotungstiteCI meas= -0.006 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.002 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1932,KPDmeas= 0.1949,KC= 0.1937 Ncalc = 1.89 - 1.9 Biaxial (-), a=1.7, b=1.95, g=2.04, bire=0.3400, 2V(Calc)=54, 2V(Meas)=52. |
| Calculated Properties of HydrotungstiteBulk Density (Electron Density)=4.09 gm/cc |
note: Specific Gravity of Hydrotungstite =4.64 gm/cc. Fermion Index = 0.09 |
Boson Index = 0.91 PEHydrotungstite = 840.62 barns/electron |
U=PEHydrotungstite x rElectron Density=3,436.32 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Hydrotungstite is Not Radioactive | Hydrotungstite Classification49.01.01.01 (49)Basic and Hydrated Molybdates and Tungstates |
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(49.01)(Acid Hydrated) |
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(49.01.01)Dana Group |
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04.FJ.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FJ -Hydroxides with H2O ± (OH); corner-sharing octahedra |
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| Other Hydrotungstite InformationNAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Hydrotungstite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Hydrotungstite using: Visit our Advertisers for Hydrotungstite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Hydrotungstite Mineral Data : Ask about Hydrotungstite here : Print or Cut-and-Paste your Hydrotungstite Specimen Label here :
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