BGS mineralogy and petrology collection record
| Sample number | E2922 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | porphyritic basalt [ altered porphyritic basalt ]: phenocrysts were feldspar but now muscovite. Groundmass finegrained tangle small feldspars with elongate iron ores and muscovite in places - see Lamplugh p320 |
| Locality details | Port-y-Mhwyll: dyke cutting 2921 |
| 50k map sheet | Isle of Man (36) |
| Map reference | SC 47304 93069 |
| 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
E2922
