BGS mineralogy and petrology collection record
| Sample number | S42566 |
|---|---|
| Sample Donor | Phemister,J. |
| Rock name | 'Original entry: Muscovite-Biotite Gneiss' |
| Stratigraphy | Not entered |
| Comments | Porphyroblastic oligoclase; some K-feldspar |
| Locality details | W wall of Wick of Tresta, 300 ft 4 deg W of S of Tresta church |
| 50k map sheet | Yell (130) |
| Map reference | HU 605 903 |
| 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
S42566
