BGS mineralogy and petrology collection record
| Sample number | E39031; COLLNOHF261; |
|---|---|
| Sample Donor | Francis,E.H. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Intrusion of rhyolite or tuff-base |
| Locality details | 1240 yd WSW of Gelli |
| 50k map sheet | Bangor (106) |
| Map reference | SH 7087 5795 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |