BGS mineralogy and petrology collection record
| Sample number | S39746; COLLNOYB308; |
|---|---|
| Sample Donor | Lawrie,T.R.M. |
| Rock name | 'Original entry: ?Porphyritic Lamprophyre Or Fine Mafic Microdiorite, Streaky, Upper Part Paler A' |
| Stratigraphy | Not entered |
| Comments | Probably concordant sheet, c. 10 ft, in quartzite; ?porphyritic lamprophyre or fine mafic microdiorite; contains coarser pale streaks, patches and bands; upper foot pale coarse type; specimen shows junction of two types |
| Locality details | R Spean, right bank, 870 yds W 41 deg S of juction of Inverness and Gairlochy roads |
| 50k map sheet | Loch Eil (62) |
| Map reference | NN 2022 8172 |
| 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
S39746
