BGS mineralogy and petrology collection record
| Sample number | MR18102 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Orthogneiss. 'Original entry: Quartz Sericite Orthogneiss' |
| Stratigraphy | Proterozoic. |
| Comments | Quartz sericite orthogneiss, Pre-Cambrian,Collected by A J Butler: |
| Locality details | Promontogno, Val Bregaglia,surface exposure,worked locally for stone table tops (1948),Switzerland |
| 50k map sheet | Not entered |
| Map reference | 46:20,9:33 |
| Year collected | 1948 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |