| Kingsbury, A.W.G. and Hartley, J. (1956) Cosalite and other lead sulpho-salts at Grainsgill, Carrock Fell, Caldbeck, Cumberland. Mineralogical Magazine, vol. 31, n° 235, pp. 296-300. Greg, Robert Philips, Lettsom, William G. (1858) Manual of the Mineralogy of Great Britain and Ireland. John Van Voorst, London. |
Carrock Fell, Cumbria, England, UK