BGS mineralogy and petrology collection record
| Sample number | MR18985 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Mudstone. 'Original entry: Shale (Phyllite)' |
| Stratigraphy | Not entered |
| Comments | shale (phyllite), ,Collected by M C Crosfield:139 |
| Locality details | Riadon,surface exposure,spotted and in contact with the granite of the Granchamp Massif,France |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1952 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |