BGS mineralogy and petrology collection record
| Sample number | E47498; COLLNOMH689; |
|---|---|
| Sample Donor | Howells,M.F. |
| Rock name | 'Original entry: Tuff' |
| Stratigraphy | Not entered |
| Comments | Tuff |
| Locality details | Craig y Mwn Mine, NE of Y Clogydd |
| 50k map sheet | Bala (136) |
| Map reference | SJ 0758 2847 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
E47498
