Russellite
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| Russellite | |
|---|---|
| Category | Tungstate minerals |
| Chemical formula | (BiO2)[WO4] |
| Identification | |
| Color | yellow-green, yellow |
| Crystal system | orthorhombic |
| Mohs Scale hardness | 3½ |
| Dispersion | relatively strong |
| Density | 7.33 - 7.37 g/cm3 |
| References | Mindat.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]
[edit] References
- ^ a b c Russellite: Russellite mineral information and data
- ^ 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.
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