BGS mineralogy and petrology collection record
| Sample number | UG1890; LABNO5622; RC727/10; |
|---|---|
| Sample Donor | Not entered |
| Rock name | 'Original entry: Opa (Fluorescent)' |
| Stratigraphy | Not entered |
| Comments | Brownish-cream fragment of hyalite opal; fluoresces green. |
| Locality details | Coso Hot Springs, California |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |