BGS mineralogy and petrology collection record
| Sample number | E45891; COLLNOLA275; |
|---|---|
| Sample Donor | Allen,P.M. |
| Rock name | 'Original entry: Dolerite' |
| Stratigraphy | Not entered |
| Comments | Dolerite |
| Locality details | 150 yds 312 deg of Bryn y Gwin |
| 50k map sheet | Harlech (135) |
| Map reference | SH 7157 1792 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |