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Russellite



Russellite
CategoryTungstate minerals
Chemical formula(Bio2)[WO4]
Identification
Coloryellow-green, yellow
Crystal systemorthorhombic
Mohs Scale hardness
Dispersionrelatively strong
Density7.33 - 7.37 g/cm3
ReferencesMindat.org

Russellite is a mineral with the chemical formula (BiO2)[WO4].[1]

In the orthorhombic crystal system, Russellite is yellow or yellow-green in colour, with a Mohs hardness of 3½.[1]

Russellite is named for the mineralogist Sir Arthur Russell, and the type locality is the Castle-an-Dinas Mine,[1] near St Columb Major in Cornwall, where it was found in wolframite.[2]

References

  1. ^ a b c http://www.mindat.org/min-3478.html
  2. ^ Embrey, P. G.; Symes, R. F. (1987). "The Mines and Mining", Minerals of Cornwall and Devon. London: British Museum (Natural History), p.54. ISBN 0565009893. 
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Russellite". A list of authors is available in Wikipedia.
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