Russellite Mineral Data + 
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- 48.2.1.1 Russellite Bi2WO6 P ca21 mm2
- VI/G.01-10 Powellite CaMoO4 I 41/a 4/m
- VI/G.01-20 Scheelite CaWO4 I 41/a 4/m
- VI/G.01-25 Paraniite-(Y) Ca2Y(AsO4)(WO4)2 I 41/a 4/m
- VI/G.01-30 Wulfenite PbMoO4 I 41/a 4/m
- VI/G.01-40 Stolzite PbWO4 I 41/a 4/m
- VI/G.01-50 Raspite PbWO4 P 2/n 2/m
- VI/G.01-60 Koechlinite Bi2MoO6 C mca 2/m 2/m 2/m
- VI/G.01-70 Russellite Bi2WO6 P ca21 mm2
General Russellite Information |
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 Chemical Formula: |
Bi2WO6 | ||
| Composition: |
Molecular Weight = 697.81 gm | ||
| Bismuth 59.90 % Bi 66.77 % Bi2O3 | |||
| Tungsten 26.35 % W 33.23 % WO3 | |||
| Oxygen 13.76 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Bi2WO6 | ||
| IMA Status: |
Valid Species (Pre-IMA) 1938 | ||
| Locality: |
Castle and Dinas mine, St. Columb Major, Cornwall, England. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Arthur Edward Ian Montagu Russell (1878-1964), British mineralogist. | ||
Russellite Image | |||
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Images:
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Russellite Crystallography |
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| Axial Ratios: |
a:b:c =0.3309:1:0.3322 | ||
| Cell Dimensions: |
a = 5.43726, b = 16.43019, c = 5.45842, Z = 4; V = 487.63 Den(Calc)= 9.50 | ||
| Crystal System: |
Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: P ca21 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.151(1), 2.738(0.29), 2.729(0.22), | ||
Physical Properties of Russellite |
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| Cleavage: |
[???] Good | ||
| Color: |
Brown orange, Greenish, Greenish yellow, Light yellow. | ||
| Density: |
7.35 | ||
| Hardness: |
3.5 - Copper Penny | ||
| Streak: |
white | ||
Optical Properties of Russellite |
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| Gladstone-Dale: |
CI meas= -0.027 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.205 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1263,KPDmeas= 0.1633,KC= 0.159 |
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| Optical Data: |
Biaxial (+), b=2.2, 2V(Meas)=0. | ||
Calculated Properties of Russellite |
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| Electron Density: |
relectron=6.07 gm/cc |
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| Fermion Index |
Fermion Index = 0.03768 Boson Index = 0.96232 |
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| Photoelectric: |
PERussellite =1,512.15 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Russellite is Not Radioactive |
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Russellite Classification |
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| Dana Class: |
48.2.1.1 (48)Anhydrous Molybdates and Tungstates | ||
| (48.2)where (A)2 XO4 | |||
| (48.2.1)Dana Group | |||
| Strunz Class: |
VI/G.01-70 VI - Sulfates,Chromates,Molybdates and Tungstates | ||
| VI/G - Molybdates [MoO4]2- and wolframates [WO4]2- | |||
| VI/G.01 - Scheelite - Wulfenite series, (Powellite - Raspite) | |||
Other Russellite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Russellite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris Search for Russellite using: Visit our Advertisers for Russellite : Translate Russellite Mineral Data : Ask about Russellite here : Print or Cut-and-Paste your Russellite Specimen Label here :
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