BGS mineralogy and petrology collection record
| Sample number | E6634 |
|---|---|
| Sample Donor | Clough, C.T. |
| Rock name | Porphyry. 'Original entry: Sheared Felsite' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Cwm Penmachno, 8 ml S of Betws-y-Coed |
| 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
E6634
