BGS mineralogy and petrology collection record
| Sample number | S30419; COLLNOTR179; |
|---|---|
| Sample Donor | Robertson,T. |
| Rock name | 'Original entry: Garnetiferous 2mica-Chlorite Gneiss' |
| Stratigraphy | Not entered |
| Comments | Gneiss, contorted; with shimmer, biotite regenerated, Na-SiO2 migmatisation |
| Locality details | S29. Coast 280 yds NNW of the old manse, Marrister, Whalsay |
| 50k map sheet | Central Shetland (128) |
| Map reference | HU 543 644 |
| 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
S30419
