BGS mineralogy and petrology collection record
| Sample number | MR842 |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Felsite' |
| Stratigraphy | Not entered |
| Comments | Bala. 380/42, B/190 |
| Locality details | Castell Caer Seion, Conway, Caernarvonshire |
| 50k map sheet | Llandudno (94) |
| Map reference | SH 760 777 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |