| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Boscaswell Downs Mine, Pendeen, St Just, Cornwall, England, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 689794 |
| Long-form Identifier: | 1:3:689794:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 0.6km (0.4 miles) | ⓘWheal Carne (Wheal Maitland; Wheal London), Geevor Mine, Pendeen, St Just, Cornwall, England, UK |
| 0.7km (0.4 miles) | ⓘCoronation Lode, Geevor Mine, Pendeen, St Just, Cornwall, England, UK |
| 1.3km (0.8 miles) | ⓘSpearn Consols (Wheal Spearn), Trewellard, St Just, Cornwall, England, UK |
| 2.1km (1.3 miles) | ⓘGrylls Bunny, Botallack Mine, Botallack, St Just, Cornwall, England, UK |
| 2.1km (1.3 miles) | ⓘBotallack Mine, Botallack, St Just, Cornwall, England, UK |
| 13.4km (8.3 miles) | ⓘSt Ives Consols (incl. Wellesley Mine; Wheal Mary), St Ives, Cornwall, England, UK |
| 19.7km (12.2 miles) | ⓘWheal Alfred, Great Wheal Alfred (Alfred Consols), Hayle, Cornwall, England, UK |
| 21.7km (13.5 miles) | ⓘRosewarne Mine (incl. Bowling Green Mine; Wheal Royal), Rosewarne and Herland United Mines (Rosewarne and Herland Mine; incl. Wheal Fancy; Wheal Pleasure), Copperhouse, Hayle, Cornwall, England, UK |
| 23.2km (14.4 miles) | ⓘNew Rosewarne Mine, Rosewarne United Mines, Gwinear-Gwithian, Cornwall, England, UK |
| 24.0km (14.9 miles) | ⓘRosewarne Consols, Halancoose, Gwinear-Gwithian, Cornwall, England, UK |
| References |
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