BGS mineralogy and petrology collection record
| Sample number | MR8309 |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Mica Orthophyre' |
| Stratigraphy | Not entered |
| Comments | mica orthophyre, ,Collected by H j Lundbohm: |
| Locality details | Tonsen, Christiania,surface exposure,dyke in Silurian,Norway |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1889 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |