BGS mineralogy and petrology collection record
| Sample number | MR10061; F3557; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Granite. 'Original entry: Biotite Granite' |
| Stratigraphy | Not entered |
| Comments | biotite granite, ,Collected by P Niggli; Purchase from Schwalm, B�tzingen (Baden):S2 |
| Locality details | Tiefenstein,surface exposure,Schwartzwald Massif,Germany |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1933 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |