[Fine Minerals] [What's New] [Mineral Galleries] [My Collection] [Mineral Auctions] Weinrich Minerals, Inc Full-time professional mineral dealer with over 31 years experience in mineral collecting And 15 years selling mineral specimens on the internet and at major mineral shows General Yttrotungstite-(Y) InformationYW2O6(OH)3 |
Molecular Weight = 598.35 gm |
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Calcium 0.27 % Ca 0.37 % CaO |
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La,Ce,Pr,Nd,Sm, 9.15 % RE 10.67 % REE2O3 |
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Yttrium 8.17 % Y 10.38 % Y2O3 |
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Magnesium 0.08 % Mg 0.13 % MgO |
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Aluminum 0.45 % Al 0.85 % Al2O3 |
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Iron 0.28 % Fe 0.40 % Fe2O3 |
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Silicon 0.19 % Si 0.40 % SiO2 |
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Hydrogen 0.51 % H 4.52 % H2O |
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Tungsten 56.84 % W 71.68 % WO3 |
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Oxygen 24.07 % O |
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100.00 % 99.41 % = TOTAL OXIDE |
Y0.55REE0.38Ca0.04Mg0.02W1.85Al0.1Si0.04Fe3+0.03O6(OH)3 |
In eluvial cassiterite mines, probably altered from wolframite or scheelite |
Valid Species (Pre-IMA) 1950 |
Kramat Pulai mine, Kinta District, Perak, Malaysia. Link to MinDat.org Location Data. |
Named for the composition (Yttrium, Tungsten). |
Yttrotungstite-(Y) + Pronunciation |
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Yttrotungstite-(Y) Crystallographya:b:c =0.8051:1:0.6681 |
a = 6.954, b = 8.637, c = 5.771, Z = 2; beta = 104.56° V = 335.48 Den(Calc)= 5.92 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m |
By Intensity(I/Io): 3.26(1), 4.69(1), 2.028(0.9), |
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Mouse
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| Physical Properties of Yttrotungstite-(Y){010} Good, {101} Poor |
Canary yellow, Light yellow. |
5.96 |
Semitransparent |
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). |
Encrustations - Forms crust-like aggregates on matrix. |
Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape. |
1 - Talc |
Earthy (Dull) |
yellow white |
| Optical Properties of Yttrotungstite-(Y)CI meas= 0.073 (Fair) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.067 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1627,KPDmeas= 0.1616,KC= 0.1744 Ncalc = 2.03 - 2.04 Biaxial (-), a=1.89, b=1.98, g=2.02, bire=0.1300, 2V(Calc)=64, 2V(Meas)=68. |
colorless, colorless, or pale yellow. |
colorless, colorless, or dark yellow. |
gray, canary yellow, or dark yellow. |
| Calculated Properties of Yttrotungstite-(Y)Bulk Density (Electron Density)=5.15 gm/cc |
note: Specific Gravity of Yttrotungstite-(Y) =5.92 gm/cc. Fermion Index = 0.09 |
Boson Index = 0.91 PEYttrotungstite-(Y) = 775.95 barns/electron |
U=PEYttrotungstite-(Y) x relectron=3,995.36 barns/cc. |
GRapi = 8,514.92 (Gamma Ray American Petroleum Institute Units)
Yttrotungstite-(Y) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Weight of pure Yttrotungstite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.92 gm/cc.* | Yttrotungstite-(Y) Classification49.03.03.02 (49)Basic and Hydrated Molybdates and Tungstates |
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(49.03)(Hydrated, containing Hydroxyl or Halogen) |
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(49.03.03)Yttrotungstite Group |
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04.FD.20 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.FD -Hydroxides with OH, without H2O; chains of edge-sharing octahedra |
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| Other Yttrotungstite-(Y) InformationNAME( AntBidBlaNic5) PHYS. PROP.(AntBidBlaNic5) OPTIC PROP.(AntBidBlaNic5) |
Links to other databases for Yttrotungstite-(Y) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - GeoScienceWorld 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Yttrotungstite-(Y) using: Visit our Advertisers for Yttrotungstite-(Y) : B & L Fine MineralsDan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Excalibur Minerals Exceptional Minerals Fabre Minerals John Betts Fine Minerals Lapis Mineral Journal Mineral News UV Tools Wrights Rock Shop Translate Yttrotungstite-(Y) Mineral Data : Ask about Yttrotungstite-(Y) here : Print or Cut-and-Paste your Yttrotungstite-(Y) Specimen Label here :
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