Sapphire from selected localities.
UK | |
| Wilson, A. C. (1975). An Occurrence of Sapphire in the Land's End Granite, Cornwall. HM Stationery Office. |
| Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications |
UK | |
| Wilson, A. C. (1975). An Occurrence of Sapphire in the Land's End Granite, Cornwall. HM Stationery Office. |
| Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications |