Isopyre from Cornwall, England, UK
UK | |
| Paul De Bondt collection |
| Paul De Bondt collection |
| Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, 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 |
Wheal Gorland, St Day, Cornwall, England, UK