BGS mineralogy and petrology collection record
| Sample number | S51925; COLLNOYR1396; |
|---|---|
| Sample Donor | Smith,D.I. |
| Rock name | 'Original entry: Porphyritic Microdiorite' |
| Stratigraphy | Not entered |
| Comments | Porphyritic microdiorite sheet (coarse), cutting Moine psammite |
| Locality details | 800 yds N 24 deg W from outflow of Loch Ruthven |
| 50k map sheet | Fort Augustus (73) |
| Map reference | NH 595 283 |
| 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
S51925
