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UK | |
| Render, Paul (n.d.) Paul Render Collection. |
| Render, Paul (n.d.) Paul Render Collection. |
| |
| Render, Paul (n.d.) Paul Render Collection. |
| Ixer, R. A., Pattrick, R. A., Starkey, R. E. (1993) Lead-Zinc-Copper-Arsenic-Baryte Mineralization from Clevedon, near Bristol, England. Journal of the Russell Society, 5 (1) 23-30 |
| Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford, London. |
- Somerset West and Taunton
| Render, Paul (n.d.) Paul Render Collection. |
| Steve Rust collection |
| Chris Popham Collection |
| |
- Upper Llanfihangell-y-Creuddyn
| M.M.Wirth collection |
| Cotterell, T. F., Green, D. I., Hubbard, N., Mason, J. S., Starkey, R. E., Tindle, A. G. (2011) The Mineralogy of Dolyhir Quarry, Old Radnor, Powys, Wales. UK Journal of Mines and Minerals 32, 5-61 National Museum of Wales database |
| Render, Paul (n.d.) Paul Render Collection. |
| Render, Paul (n.d.) Paul Render Collection. |
| Render, Paul (n.d.) Paul Render Collection. |