Boltwoodite from
South Terras Mine (Resugga & Tolgarrick Mine; Union Mine; Uranium Mine), St Stephen-in-Brannel, Cornwall, England, UK
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Boltwoodite | |
| Formula: | (K,Na)(UO2)(SiO3OH) · 1.5H2O | |
| Formation: | Secondary, Post-mining/Anthropogenic | |
| Comments: | This material was found while checking for fluorescent species. Earthy, yellowish-brown/ochre-coloured encrustations associated with other secondary uranium species. Very weak tawn fluorescence under LW UV. | |
| Habit: | Not determined. | |
| Colour: | Yellowish brown / ochre | |
| Luminescent properties: | Distinct but very weak tawn/brown fluorescence under LW UltraViolet (LED) | |
| Quality for species: | Poor for species, only of interest for locality collectors. (#) | |
| Confirmation | ||
| Validity: | Unconfirmed/Questioned | |
| Data | ||
| Mineral Data: | Click here to view Boltwoodite data | |
| Locality Data: | Click here to view South Terras Mine (Resugga & Tolgarrick Mine; Union Mine; Uranium Mine), St Stephen-in-Brannel, Cornwall, England, UK | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 1245723 | |
| Long-form Identifier: | 1:3:1245723:8 | |
| GUID (UUID V4): | 702a2f24-e76a-452a-a9f1-f9665dabd624 | |
| Nearest other occurrences of Boltwoodite | ||
| 60.3km (37.5 miles) | ⓘLoe Warren Zawn, Botallack, St Just, Cornwall, England, UK | |
| 66.5km (41.4 miles) | ⓘFoggintor Quarry, Princetown, Dartmoor Forest, West Devon, Devon, England, UK | |
| References | ||
