BGS mineralogy and petrology collection record
| Sample number | E37033; COLLNOHF145; |
|---|---|
| Sample Donor | Howells,M.F. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | ?Ash flow tuff (Bedded base) |
| Locality details | Afon Ystum, 830 yds downstream from Llyn y Foel |
| 50k map sheet | Bangor (106) |
| Map reference | SH 7227 5447 |
| 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
E37033
