BGS mineralogy and petrology collection record
| Sample number | E25412; COLLNORH46; |
|---|---|
| Sample Donor | Hoare,R.H. |
| Rock name | Tuff. 'Original entry: Crystal Tuff' |
| Stratigraphy | Not entered |
| Comments | Isolated crags in field |
| Locality details | 250 yds. at 300o from Tan-Yr-Alt; 1200 yds. at 250o from chapel at Henrhyd |
| 50k map sheet | Bangor (106) |
| Map reference | SH 763 745 |
| 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
E25412
