BGS mineralogy and petrology collection record
| Sample number | S41667; S41667/A; |
|---|---|
| Sample Donor | Phemister,J. |
| Rock name | 'Original entry: Oligoclase-Muscovite-Biotite Gneis' |
| Stratigraphy | Not entered |
| Comments | Unusually black pelitic gneiss qith quartz-feldspar lenses; myrmekite but no K-feldspar |
| Locality details | Red Geo, 2830 ft 9 deg W of S of Tresta Church |
| 50k map sheet | Yell (130) |
| Map reference | HU 606 897 |
| 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
S41667
S41667/A
