BGS mineralogy and petrology collection record
| Sample number | E2499 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | quartz porphyry [ microgranulitic of ? Crystallised rock ]: groundmass minute microgranulitic to cryptocrystalline with quartz, feldspar and muscovite; it is crushed and foliated. Chief phenocrysts with groundmass inclusions and edges on which the gr |
| Locality details | Great Laxey Mine 255fms level 490yds N of Dumbrell's shaft.: elvan (microgranite) |
| 50k map sheet | Isle of Man (46) |
| Map reference | SC 43176 86367 |
| 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
E2499
