BGS mineralogy and petrology collection record
| Sample number | S29261 |
|---|---|
| Sample Donor | Allan,J.K. |
| Rock name | 'Original entry: Diaphthoretic Muscovite-Biotite-Chlorite-Oligoclase Gneiss' |
| Stratigraphy | Not entered |
| Comments | Diaphthoretic muscovite-biotite-chlorite-oligoclase gneiss. Spotted mica schist from sheared belt; garnetiferous, recrystallised, since diaphthoresis |
| Locality details | Shore 200 yds S by W from Head of Bratta |
| 50k map sheet | Yell (130) |
| Map reference | HU 474 988 |
| 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
S29261
