BGS mineralogy and petrology collection record
| Sample number | MR16518 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Porphyry. 'Original entry: Feldspar' |
| Stratigraphy | Not entered |
| Comments | Feldspar , ,Collected by K C Dunham: |
| Locality details | Leadville, Colorado,surface exposure,USA |
| 50k map sheet | Not entered |
| Map reference | 39:15,106:17 |
| Year collected | 1938 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |