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UK | |
| Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 90, 231-234. |
| Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 223-226. |
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| Dunham pp218, 233, 253-4 |
| Visual id (H Wilkinson) |
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| Fluorite: The Collector's Choice. Extra Lapis English No. 9 |
| Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 173-178. |
| UK Mining Ventures Ltd |
| Dunham, K. C., 1990, Geology of the Northern Pennine orefield, v. I, 2nd Ed. British Geological Survey, London, 299 p. |
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| Mineralogical Magazine 1996 60 : 317-324 |
| Render, Paul (n.d.) Paul Render Collection. |
| BMS Collection |
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| Render, Paul (n.d.) Paul Render Collection. |
| Day, Harry (1999) BMS Database, British Micromount Society. Natural History Museum Vienna (catalogued in 1932) |
| Dunham, Sir KC. 1990. Geology of the Northern Pennine Orefield. Vol 1. Tyne to Stainmore. HMSO |
| R. A. Ixer, C. J. Stanley and D. J. Vaughan (1979) Cobalt-, Nickel-, and Iron-Bearing Sulpharsenides from the North of England. Mineralogical Magazine 43:389-395. |
| Ixer, R.A. and Stanley, C.J. (1987): Proceedings of the Yorkshire Geological Society 46, 133-139. R. A. Ixer, C. J. Stanley and D. J. Vaughan (1979) Cobalt-, Nickel-, and Iron-Bearing Sulpharsenides from the North of England. Mineralogical Magazine 43:389-395. [Russell Society Newsletter 35 Sep 1999 p 35] |
| 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. |
| R. A. Ixer, C. J. Stanley and D. J. Vaughan (1979) Cobalt-, Nickel-, and Iron-Bearing Sulpharsenides from the North of England. Mineralogical Magazine 43:389-395. |
| Green, David I., McCallum, David, Wood, Mike (2000) Famous Mineral Localities: The Brownley Hill Mine, Alston Moor District, Cumbria, England. The Mineralogical Record, 31 (3) 231-250 |
| Jordi Fabre photo |
| Collected by many collectors. |
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| Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 129. |
| Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 167-171 |
| Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 164-165 |
| Alexander Wong and Len Lesko Collections |
Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK