Plagioclase from selected localities.
UK | |
| Cooper, M.P. and Stanley, C.J. (1990) Minerals of the English Lake District: Caldbeck Fells. Natural History Museum Publications, London, 160 pp. |
Kitchen, C.S. (1934) The Skiddaw Granite and its residual products. Quarterly Journal of the Geological Society, 90(1-4), 158-200.; Cooper, M.P. and Stanley, C.J. (1990) Minerals of the English Lake District: Caldbeck Fells. Natural History Museum Publications, London, 160 pp. |