BGS mineralogy and petrology collection record
| Sample number | MR10069; F3565; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Gneiss. 'Original entry: Biotite Gneiss' |
| Stratigraphy | Not entered |
| Comments | biotite gneiss, ,Collected by P Niggli; Purchase from Schwalm, B�tzingen (Baden):G1 |
| Locality details | Laventezzo, Val Venzasca,surface exposure,Simano Nappe,Switzerland |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1933 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |