| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Quartz | ⓘ1 photo of Opal associated with Quartz at this locality. |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Wheal Katherine, Dartmoor Forest, West Devon, Devon, England, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 422190 |
| Long-form Identifier: | 1:3:422190:6 |
| GUID (UUID V4): | 4cc57c7d-1f7b-4832-b191-c0bf6d83b151 |
| Nearest other occurrences of Opal |
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| 5.2km (3.2 miles) | ⓘHooten Wheals (Hexworthy Mine), Hexworthy, Dartmoor Forest, West Devon, Devon, England, UK |
| 6.7km (4.2 miles) | ⓘLee Moor China Clay Pit, Shaugh Prior, South Hams, Devon, England, UK |
| 20.1km (12.5 miles) | ⓘHingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK |
| 26.3km (16.4 miles) | ⓘBelstone Consols (Mid-Devon Copper Mine), Belstone, West Devon, Devon, England, UK |
| 51.2km (31.8 miles) | ⓘRestormel Royal Iron Mine (Trinity Mine), Lostwithiel, Cornwall, England, UK |
| 52.5km (32.6 miles) | ⓘWheal Maudlin (Wheal Mawdlin; Wheal Magdalen), Lostwithiel, Cornwall, England, UK |
| 55.6km (34.6 miles) | ⓘLady Rashleigh Consols, Prideaux, Luxulyan (Luxullian), Cornwall, England, UK |
| 59.7km (37.1 miles) | ⓘCarclaze Old Tin Pit, Carclaze China Clay Pit (Baal China Clay Pit), Carludon, Treverbyn, Cornwall, England, UK |
| 60.4km (37.6 miles) | ⓘRock Hill China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK |
| 60.7km (37.7 miles) | ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK |
| References |
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Wheal Katherine, Dartmoor Forest, West Devon, Devon, England, UK