BGS mineralogy and petrology collection record
| Sample number | S28347 |
|---|---|
| Sample Donor | Allan,J.K. |
| Rock name | 'Original entry: Oligoclase-Microcline-Biotite Gneiss' |
| Stratigraphy | Not entered |
| Comments | Dark grey biotite gneiss; permeation gneiss |
| Locality details | Hill of Backhouse |
| 50k map sheet | Unst (131) |
| Map reference | HP 540 033 |
| 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
S28347
