BGS mineralogy and petrology collection record
| Sample number | E8883; COLLNO393; |
|---|---|
| Sample Donor | Blake,Professor |
| Rock name | 'Original entry: Heavily Chloritised Ash' |
| Stratigraphy | Not entered |
| Comments | Slaty tongue in felsite |
| Locality details | S end of Llanberis Tunnel |
| 50k map sheet | Bangor (106) |
| 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
E8883
