BGS mineralogy and petrology collection record
| Sample number | S11057 |
|---|---|
| Sample Donor | Barrow, G. |
| Rock name | 'Original entry: Grey Gneiss' |
| Stratigraphy | Not entered |
| Comments | Much parallel biotite, but a few crystals of biotite at a high angle with foliation, i.e. a slightly speckled gneiss; abundant microcline, a little plagioclase and some quartz.The muscovite crystals are not common but they show a plumose, pegmatite s |
| Locality details | 9. Allt a'Mhadaidh |
| 50k map sheet | Kingussie (64) |
| Map reference | NN 786 814 |
| 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
S11057
