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An alteration product of primary bismuth minerals and wolframite.
The tungstate analogue of koechlinite and the Bi analogue of tungstibite.
Classification of Russellite
|IMA status:||Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"|
|Strunz 8th edition ID:||6/G.01-70|
|Nickel-Strunz 10th (pending) edition ID:||4.DE.15|
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
E : With medium-sized cations; with various polyhedra
|Dana 8th edition ID:||184.108.40.206|
48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
2 : A2XO4
|Hey's CIM Ref.:||27.4.10|
27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
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Type Occurrence of Russellite
|Type Locality:||Castle-an-Dinas Mine, Castle-an-Dinas, St Columb Major, St Austell District, Cornwall, England, UK|
|Year of Discovery:||1938|
Physical Properties of Russellite
|Density (measured):||7.33 - 7.37 g/cm3|
|Density (calculated):||7.4 g/cm3|
Crystallography of Russellite
|Cell Parameters:||a = 5.43Å, b = 16.43Å, c = 5.45Å|
|Ratio:||a:b:c = 0.33 : 1 : 0.332|
|Unit Cell Volume:||V 486.22 Å³ (Calculated from Unit Cell)|
Optical Data of Russellite
Chemical Properties of Russellite
|Simplified for copy/paste:||Bi2WO6|
|Essential elements:||Bi, O, W|
|All elements listed in formula:||Bi, O, W|
Relationship of Russellite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Russellite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Russellite
Hey, Max and Bannister, Frederick Allen (1938), Russellite, a new British mineral, Mineralogical Magazine: 25: 41-55.
American Mineralogist (1938): 23: 121.
Palache, Charles, Harry Berman, and Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 604-605.
Knight, K. S. (1992) The crystal structure of russellite; a re-determination using neutron powder diffraction of synthetic Bi2WO6, Mineralogical Magazine 56: 399-409.
American Mineralogist (1993): 78: 454.
Internet Links for Russellite
Localities for Russellite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: Wheal Liberty, Mithian, St Agnes, St Agnes District, Cornwall, England, UKFrom Peter Haas, 31st Aug 2014 01:33:53