BGS mineralogy and petrology collection record
| Sample number | E38747; COLLNOCE40; |
|---|---|
| Sample Donor | Evans,C.D.R. |
| Rock name | 'Original entry: Tuff' |
| Stratigraphy | Not entered |
| Comments | Crystal muddy vitric tuff. 6-8 ft above base of Lower Rhyolitic Tuffs |
| Locality details | 500 yds 185 deg from Dolwyddelan Castle |
| 50k map sheet | Snowdon (119) |
| Map reference | SH 7213 5189 |
| 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
E38747
