BGS mineralogy and petrology collection record
| Sample number | E1557 |
|---|---|
| Sample Donor | Geikie,A. |
| Rock name | Porphyry. 'Original entry: Felsite' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Near 1st Greenstone, W of Dolgelly |
| 50k map sheet | Barmouth (149) |
| Map reference | |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |