BGS mineralogy and petrology collection record
| Sample number | S52637; COLLNOYR1283; |
|---|---|
| Sample Donor | Smith,D.I. |
| Rock name | 'Original entry: Dark Microdiorite' |
| Stratigraphy | Not entered |
| Comments | 6 ft dark microdiorite dyke |
| Locality details | Cruachan Main Tunnel, chainage 5235 ft from outfall portal |
| 50k map sheet | Oban (45) |
| Map reference | NN 0849 3107 |
| 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
S52637
