Russellite

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 Russellite: Russellite mineral information and data
2. ^ Embrey, P. G.; Symes, R. F. (1987). "The Mines and Mining". Minerals of Cornwall and Devon. London: British Museum (Natural History). pp. p.54. ISBN 0565009893.


List of minerals