Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-23T03:25:24.263Z Has data issue: false hasContentIssue false

Notes on a new occurrence of stilpnomelane from North Wales

Published online by Cambridge University Press:  14 March 2018

D. W. Matthews
Affiliation:
Department of Mineralogy and Petrology, Cambridge
J. H. Scoon
Affiliation:
Department of Mineralogy and Petrology, Cambridge

Summary

An occurrence of stilpnomelane in calcite veins cutting an Ordovician sedimentary iron-ore body has yielded good material for optical and chemical study; data for both ferro- and ferri-stilpnomelane are presented. Associated pyrrhotine, ilmenite, and apatite are briefly described, and a chemical analysis of the apatite shows it to be an extremely pure fluorapatite.

Type
Research Article
Copyright
Copyright © 1964, The Mineralogical Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bloxam, (T.W.) and Price, (N.B.), 1961.Matur., vol. 190, p. 525.Google Scholar
Deer, (W.A.), Howie (R. Ao), and Zussman, (J.), 1962.Rock-forming Mineral., vol. 2, pp. 103.114.Google Scholar
Hallimond, (A.F.), 1924.Min. Mag., vol. 20, p. 193.Google Scholar
Hallimond, (A.F.), 1925.Iron Ores: Bedded ores of England and Wales. Petrography and Chemistry. Special Rept. Min. Resources Gt. Btn., vol. 29.Google Scholar
Huttoh, (C.O.), 1938.Min. Mag., vol. 25, p. 176.Google Scholar
Huttoh, (C.O.), 1945.Amer. Min., vol. 30, p. 714.Google Scholar
Huttoh, (C.O.), and Turner, (F.J.), 1936.Trans. Roy. Soc. New Zealan., vol. 65, p. 405.Google Scholar
Strahah, (A), Cantrill, (T.C.), and Sherlock, (R.L.), 1920.Iron Ores (cont.): Pre-Carboniferous and Carboniferous bedded Ores of England and Wales. Special Rept. Min. Resources Gt. Btn., vol. 13, p. 28.Google Scholar
Wyllie, (P.J.) and Tuttle (0. F.), 1960.Journ. Petrolog., vol. 2, p. 1.Google Scholar
Wyllie, (P.J.), Cox, (K.G.), and Bmgar, (G.M.), 1962.Journ. Petrolog., vol. 3, p. 238.Google Scholar