BGS mineralogy and petrology collection record
| Sample number | E54464; COLLNOFU92; |
|---|---|
| Sample Donor | Fletcher, Chris J.N |
| Rock name | 'Original entry: Tuff' |
| Stratigraphy | Not entered |
| Comments | Quartzite with grit and tuff layers. Tryfan Gp. |
| Locality details | 395 m. at 319 deg. from the summit of Cilgwyn |
| 50k map sheet | Nefyn (118) |
| Map reference | SH 4951 5457 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
E54464
