BGS mineralogy and petrology collection record
| Sample number | MR16523 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Phonolitic-Rock. 'Original entry: Phonolitic Breccia' |
| Stratigraphy | Not entered |
| Comments | Phonolitic breccia, ,Collected by K C Dunham: |
| Locality details | Cripple Creek, Colorado,surface exposure,See Loughlin, G F 1933. 16th IGC Guidebook pp 113-122.,USA |
| 50k map sheet | Not entered |
| Map reference | 38:45,105:10 |
| Year collected | 1938 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |