BGS mineralogy and petrology collection record
| Sample number | MR10128; F3630; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Porphyry. 'Original entry: Quartz Porphyry (Porphyroid)' |
| Stratigraphy | Not entered |
| Comments | quartz porphyry (porphyroid), ,Collected by P Niggli; Purchase from Schwalm, B�tzingen (Baden):E10 |
| Locality details | Lej Giaz�l, Sils Baselgia,surface exposure,Bernina Nappe,Switzerland |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1933 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |