Sphalerite from selected localities.
UK | |
| The Metalliferous Mining Region of South-West England, H G Dines 1956 |
| Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 550-551 |
UK | |
| The Metalliferous Mining Region of South-West England, H G Dines 1956 |
| Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 550-551 |