|
UK | |
| Hawkins, C., and Paris, J.A. (1818): Transactions of the Royal Geological Society of Cornwall 1, 235-236. |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| P,D, Trebilcock collection. |
| Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro. |
| Rudler, F. W. (1905) A Handbook to a Collection of the Minerals of the British Isles - Mostly selected from the Ludlam Collection, in the Museum of Practical Geology. 253pp. |
Luxulyan, Cornwall, England, UK