| Locality type: | Quarry |
| 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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| Chalcopyrite | 3 |
| Fluorite | 3 |
| Muscovite | 3 |
| Schorl | 2 |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Hingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK |
| Photo Gallery | View Gallery (3 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 493390 |
| Long-form Identifier: | 1:3:493390:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 14.5km (9.0 miles) | ⓘPhoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK |
| 19.1km (11.9 miles) | ⓘLee Moor China Clay Pit, Shaugh Prior, South Hams, Devon, England, UK |
| 20.1km (12.5 miles) | ⓘWheal Katherine, Dartmoor Forest, West Devon, Devon, England, UK |
| 24.5km (15.2 miles) | ⓘHooten Wheals (Hexworthy Mine), Hexworthy, Dartmoor Forest, West Devon, Devon, England, UK |
| 31.7km (19.7 miles) | ⓘBelstone Consols (Mid-Devon Copper Mine), Belstone, West Devon, Devon, England, UK |
| 32.7km (20.3 miles) | ⓘRestormel Royal Iron Mine (Trinity Mine), Lostwithiel, Cornwall, England, UK |
| 33.8km (21.0 miles) | ⓘWheal Maudlin (Wheal Mawdlin; Wheal Magdalen), Lostwithiel, Cornwall, England, UK |
| 37.9km (23.6 miles) | ⓘLady Rashleigh Consols, Prideaux, Luxulyan (Luxullian), Cornwall, England, UK |
| 42.0km (26.1 miles) | ⓘCarclaze Old Tin Pit, Carclaze China Clay Pit (Baal China Clay Pit), Carludon, Treverbyn, Cornwall, England, UK |
| 42.2km (26.2 miles) | ⓘRock Hill China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK |
| References |
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Weiss, S., Green, D.H., Hooper, J.J., and Elton, N. (2007) Erzgänge und "Alpine" Klüfte: Die Mineralien des Hingston Quarry, Calstock, Cornwall. Lapis 32 (11), 13-25; 54. |
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Hingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK