BGS mineralogy and petrology collection record
| Sample number | E41100; COLLNOBL399; |
|---|---|
| Sample Donor | Leveridge,B.E. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Crags nr the top of the Afon Porthllwyd Valley |
| Locality details | 290 m W of B 5106; 50 m N of Afon Porthllywd |
| 50k map sheet | Bangor (106) |
| Map reference | SH 7663 6768 |
| 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
E41100
