BGS mineralogy and petrology collection record
| Sample number | S28191 |
|---|---|
| Sample Donor | Read, H.H. |
| Rock name | 'Original entry: Biotite-Muscovite-Oligoclase Gneiss' |
| Stratigraphy | Not entered |
| Comments | Feldspathic gneiss, Burra Firth Group; granulitised, microaugened, tending to porphyroclastic |
| Locality details | Burra Firth, 500 yds S of The Ness |
| 50k map sheet | Unst (131) |
| Map reference | HP 611 144 |
| 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
S28191
