BGS mineralogy and petrology collection record
| Sample number | S42201 |
|---|---|
| Sample Donor | Phemister,J. |
| Rock name | 'Original entry: Biotite-Orthoclase-Oligoclase Gneiss' |
| Stratigraphy | Not entered |
| Comments | Medium-grained granulitic gneiss, semipelitic? Looks like a K-permeated type as distinct from the black and white oligoclase-biotite gneiss type; with garnet |
| Locality details | Graveland, North Rivers Geo, stream bed 100 yds from shore |
| 50k map sheet | Yell (130) |
| Map reference | HU 462 959 |
| 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
S42201
