BGS mineralogy and petrology collection record
| Sample number | MR3493 |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Dolerite' |
| Stratigraphy | Not entered |
| Comments | dolerite, ,Collected by H Bauerman: |
| Locality details | Concord Mine, Portage Lake, Michigan,surface exposure,glacial environment specimens,USA |
| 50k map sheet | Not entered |
| Map reference | 42:10,85:33 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |