BGS mineralogy and petrology collection record
| Sample number | E486; MR640; |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Felsite' |
| Stratigraphy | Not entered |
| Comments | Probably altered glassy rock. 97/40, a/157. |
| Locality details | Between Trewellell and Caerforiog, 3 mi NE of St Davids, Pembrokeshire |
| 50k map sheet | St. Davids (209) |
| Map reference | SM 805 267 |
| 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
E486
