BGS mineralogy and petrology collection record
| Sample number | MR10047; F3539; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Mylonite. 'Original entry: Mylonite, Coarsely Porphyritic' |
| Stratigraphy | Not entered |
| Comments | mylonite, coarsely porphyritic, ,Collected by P Niggli; Purchase from Schwalm, B�tzingen (Baden):T9 |
| Locality details | Punteglas region, B�ndner Oberland,surface exposure,Aar Massif,Switzerland |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1933 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |