BGS mineralogy and petrology collection record
| Sample number | E53294; E53294/A; E53294/B; COLLNOLA885; |
|---|---|
| Sample Donor | Allen,P.M. |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Porphyry |
| Locality details | Treffynnon No. 6 BH, 250 m 45 deg from Treffynnon Chapel |
| 50k map sheet | St. Davids (209) |
| Map reference | SM 8486 2875 |
| Year collected | Not entered |
| Bore name | Treffynnon Chapel |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
E53294/A
E53294/B
