BGS mineralogy and petrology collection record
| Sample number | E61626; COLLNOMH1540; |
|---|---|
| Sample Donor | Howells,M.F. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Acid tuff/tuffite |
| Locality details | Craig Las |
| 50k map sheet | Barmouth (149) |
| Map reference | SN 6810 1137 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |