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UK | |
| Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro. |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro. |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Hogg, Thomas (1825) A Manual of Mineralogy - In which is shown how much Cornwall contributes to the illustration of the science. W. Polybank High Cross, Truro. Phillips, William (1823) An Elementary Introduction to Mineralogy (3rd ed.) |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Mineralogical Magazine 1967 36 : 614-616 |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Hogg, Thomas (1825) A Manual of Mineralogy - In which is shown how much Cornwall contributes to the illustration of the science. W. Polybank High Cross, Truro. Carne, J. (1822) On the Mineral Productions and the Geology of the Parish of St. Just. Transactions of the Royal Geological Society of Cornwall, 2. 290-358 |
| Phillips, William (1823) An Elementary Introduction to Mineralogy (3rd ed.) |