BGS mineralogy and petrology collection record
| Sample number | MR874 |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Dolerite' |
| Stratigraphy | Not entered |
| Comments | Intrusive into Bala. 373/41, B/179 |
| Locality details | Pont-y-Gromlech, Llanberis, Caernarvonshire |
| 50k map sheet | Bangor (106) |
| Map reference | SH 630 566 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |