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UK | |
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| [var. Smoky Quartz] Green, David I., Bell, R., Moreton, S. (2005) Drusy cavity minerals including the first Irish danalite from Lindsay’s Leap, Mourne Mountains, Co. Down. UK Journal of Mines and Minerals 25, 25-30 |
| [var. Smoky Quartz] S. Moreton, unpublished observation. |
| [var. Smoky Quartz] Field observation by Stephen Callaghan |
| [var. Smoky Quartz] Olivier Mével specimen |
| Trevor Boyd Collection |
| [var. Smoky Quartz] Green, D.I., Moreton, S. (2001) Twenty years in minerals: Ireland. UK Journal of Mines and Minerals 21, Rockbottom Publications. 29-36 |
Lindsay's Leap, Newcastle, Mourne Mountains, County Down, Northern Ireland, UK