Chalcedony from selected localities.
UK | |
| Kingsbury, A.W.G. and Hartley, J. (1957) Beaverite from the Lake District. Mineralogical Magazine, vol. 31, n° 239, 700-702.; Kingsbury, A.W.G. and Hartley, J. (1958) Jarosite and natrojarosite from the Lake District. Mineralogical Magazine, vol. 31, n° 240, 813-815.; Cooper, M.P. and Stanley, C.J. (1990) Minerals of the English Lake District: Caldbeck Fells. Natural History Museum Publications, London, 160 pp. (referring to Kingsbury & Hartley, 1958).; Green, D.I., Bridges, T.F., Rumsey, M.S., Leppington, C.M., and Tindle, A.G. (2008) A review of the mineralogy of the Roughton Gill Mines, Caldbeck Fells, Cumbria: Part 2 The Roughton Gill South Vein on Balliway Rigg. Journal of The Russell Society, 11, 3-28. |