BGS mineralogy and petrology collection record
| Sample number | E49125; COLLNOAP629; |
|---|---|
| Sample Donor | Addison,R. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Rhyolite |
| Locality details | Crags at Head of Afon Berthen. 1 km W of Carnedd Dafydd |
| 50k map sheet | Bangor (106) |
| Map reference | SH 6531 6302 |
| 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
E49125
