BGS mineralogy and petrology collection record
| Sample number | E3979; NEG23M,1519M; |
|---|---|
| Sample Donor | H.D.C |
| Rock name | 'Original entry: Granite Porphyry' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Yr Eifl, Llanaelhaiarn Trefor Quarries. |
| 50k map sheet | Nefyn (118) |
| Map reference | SH 363 461 |
| 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
E3979
