BGS mineralogy and petrology collection record
| Sample number | E38734; COLLNOCE27; |
|---|---|
| Sample Donor | Evans,C.D.R. |
| Rock name | 'Original entry: Tuff' |
| Stratigraphy | Not entered |
| Comments | Crystal rich tuff, about 50 ft from top of Lower Rhyolitic tuffs of the Snowdon V.S |
| Locality details | 185 yds 317 deg from Roman Bridge Halt |
| 50k map sheet | Snowdon (119) |
| Map reference | SH 7115 5148 |
| 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
E38734
