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UK | |
| Day, Harry (1999) BMS Database, British Micromount Society. |
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| Day, Harry (1999) BMS Database, British Micromount Society. |
- Upper Llanfihangell-y-Creuddyn
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| Rust, Steve A. (2019) Minerals of the Frongoch Mine. Published by the author, 180 pages. ISBN 978-1-9162641-0-6 (referring to Bevins, 1994). Day, Harry (1999) BMS Database, British Micromount Society. Green, D.I., Rust, S.A., Mason, J.S. (1996) Classic British mineral localities: Frongoch mine, Dyfed. UK Journal of Mines and Minerals 17, Rockbottom Publications. 29-39 Bevins, Richard E. (1994) A Mineralogy of Wales - Geological Series No. 16. National Museum of Wales, Cardiff. p.146-146. |
| Day, Harry (1999) BMS Database, British Micromount Society. |
- Lisburne Lead and Silver Mines
| Day, Harry (1999) BMS Database, British Micromount Society. |
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| 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 |
Nant-y-Car Mine, Rhayader, Powys, Wales, UK