BGS mineralogy and petrology collection record
| Sample number | E49002; COLLNOBP224; |
|---|---|
| Sample Donor | Lowe,D.J. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Crystal Tuff |
| Locality details | 700 m at 244deg SW from outfall of Afon Idwall, NE corner of Llyn Idwal |
| 50k map sheet | Bangor (106) |
| Map reference | SH 6406 5945 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |