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UK | |
| Halliday, A. N. (1980). The timing of early and main stage ore mineralization in Southwest Cornwall. Economic Geology, 75(5), 752-759. Kingsbury, Arthur W. G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (240). 815-817 doi:10.1180/minmag.1958.031.240.10 |
| Halliday, A. N. (1980). The timing of early and main stage ore mineralization in Southwest Cornwall. Economic Geology, 75(5), 752-759. |
| Halliday, A. N. (1980). The timing of early and main stage ore mineralization in Southwest Cornwall. Economic Geology, 75(5), 752-759. |