Sphalerite from selected localities.
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| Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 104. |
| Davy, H. (1818): Transactions of the Royal Geological Society of Cornwall 1, 38-50; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Sir Arthur Russell (1949) The Wherry Mine, Penzance, Its History and its Mineral Productions. Mineralogical Magazine 28:517-533. |