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On the occurrence of turquoise in Cornwall
Published online by Cambridge University Press: 14 March 2018
Extract
In my description of the mineral rashleighite, which was given in this magazine in 1948, I mentioned that most of the mineral from the Bunny mine, St. Austell, was in colour light blue-green, but that it was also sometimes true turquoise-blue. Likewise, at the Castle-an-Dinas wolfram mine, St. Columb Major, there occurred rarely in addition to the blue-green rashleighite a true turquoise-blue mineral which was first assumed to be turquoise and later rashleighite. It has now been found, however, that this turquoise-blue mineral is in fact true turquoise, and distinct from the green rashleighite, Specimens of this turquoise were found at the Bunny mine, associated with varlamoffite.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 29 , Issue 218 , September 1952 , pp. 909 - 912
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1952
References
page 909 note 1 Russell, A., On rashleighite, a new mineral from Cornwall, intermediate between turquoise and chalcosiderite. Min. Mag., 1948, vol. 28, pp. 356 and 357Google Scholar.
page 909 note 2 Hey, M. H. and Bannister, F. A., Russellite, a new British mineral. With a note on the occurrence and the accompanying minerals, by Arthur Russell. Min. Mag., 1938, vol. 25, p. 54 Google Scholar.
page 909 note 3 The occurrence of turquoise at Bunny mine was mentioned in a joint paper by myself and Dr. Vincent, On the occurrence of varlamoffite in Cornwall. Min. Mag., 1952, vol. 29, p. 819.