BGS mineralogy and petrology collection record
| Sample number | E75007; COLLNOABL046; |
|---|---|
| Sample Donor | Wilby, P.R. |
| Rock name | 'Original entry: Felsic Tuff' |
| Stratigraphy | Not entered |
| Comments | Silicified tuff, |
| Locality details | South slope of Gyfnedd Goch |
| 50k map sheet | Nefyn (118) |
| Map reference | SH 51070 49090 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |