BGS mineralogy and petrology collection record
| Sample number | E62822; COLLNOWP379/2; |
|---|---|
| Sample Donor | Pratt, W. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Top of Graig y Llan Form; Ash-flow tuff. |
| Locality details | Stream. 400 m SE of Gesail (Bird rock) |
| 50k map sheet | Barmouth (149) |
| Map reference | SH 6447 0614 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |