BGS mineralogy and petrology collection record
| Sample number | MR9318 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Felsite, Porphyritic. 'Original entry: Porphyry' |
| Stratigraphy | Not entered |
| Comments | Porphyry,Nevin Porphyry,Collected byTG Jones J743 |
| Locality details | 1 mile SE of Nevin, |
| 50k map sheet | Nefyn (118) |
| Map reference | Not entered |
| Year collected | 1932 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |