BGS mineralogy and petrology collection record
| Sample number | MR25220 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Basalt. 'Original entry: Chalcedony In Basalt' |
| Stratigraphy | Quaternary. |
| Comments | chalcedony in basalt, Quaternary,Collected by Miss H A N MacDonald:HM518 |
| Locality details | Muriwai, Auckland,surface exposure,New Zealand |
| 50k map sheet | Not entered |
| Map reference | 36:49,174:25 |
| Year collected | 1961 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |