BGS mineralogy and petrology collection record
| Sample number | E49135; COLLNOAP639; |
|---|---|
| Sample Donor | Addison,R. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Crystal tuff |
| Locality details | Cwmglas Mawr, 1 km NE of Carnedd Dafydd |
| 50k map sheet | Bangor (106) |
| Map reference | SH 6719 6340 |
| 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
E49135
