Langite from Trefeirig, Ceredigion, Wales, UK
UK | |
| S. Rust collection |
| |
| S. Rust collection |
Chris Popham Collection | |
Day, Harry (1999) BMS Database, British Micromount Society. | |
Jones, A. D. (1987) The minerals of Llechwedd Helyg. UK Journal of Mines and Minerals 3, 25-27 |
Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK