BGS mineralogy and petrology collection record
| Sample number | MR880 |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Andesite' |
| Stratigraphy | Not entered |
| Comments | Intrusive into Bala. 379/41, B/186. |
| Locality details | Llyn-pen-Craig, 3.5 mi N of Bettws-y-Co.ed, Caernarvonshire |
| 50k map sheet | Bangor (106) |
| Map reference | SH 778 585 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |