BGS mineralogy and petrology collection record
| Sample number | MR10140; F3645; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Marble. 'Original entry: Ophicalcite' |
| Stratigraphy | Not entered |
| Comments | ophicalcite, ,Collected by P Niggli; Purchase from Schwalm, B�tzingen (Baden):O8 |
| Locality details | Gravasalvas, Silsersee,surface exposure,Platta Nappe; also section F3646,Switzerland |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1933 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |