BGS mineralogy and petrology collection record
| Sample number | MR40976 |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Hornblende Andesite' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Sutro Tunnel (Sutro to Viginia City) 100ft from Entrance |
| 50k map sheet | Not entered |
| Map reference | 39:16,119:35 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |