BGS mineralogy and petrology collection record
| Sample number | E12037; COLLNO894; |
|---|---|
| Sample Donor | Road Board |
| Rock name | 'Original entry: Porphyritic Felsite' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Pengwern Qry. Blaneau Festiniog |
| 50k map sheet | Snowdon (119) |
| Map reference | |
| 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
E12037
