| Locality type: | Pit |
| 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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| Turquoise | 5 |
| - var Rashleighite | 5 |
| Cuprite | 2 |
| Malachite | 2 |
| Azurite | 1 |
| Metatorbernite | 1 |
| Tourmaline | 1 |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK |
| Photo Gallery | View Gallery (15 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 8262 |
| Long-form Identifier: | 1:3:8262:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 1.0km (0.6 miles) | ⓘRock Hill China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK |
| 1.1km (0.7 miles) | ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK |
| 1.5km (0.9 miles) | ⓘGreat Wheal Prosper China Clay Pit, Trezaise (Tresayes), Roche, Cornwall, England, UK |
| 1.8km (1.1 miles) | ⓘGreat Longstone China Clay Pit, Longstone Downs, St Mewan, Cornwall, England, UK |
| 3.0km (1.9 miles) | ⓘCarclaze Old Tin Pit, Carclaze China Clay Pit (Baal China Clay Pit), Carludon, Treverbyn, Cornwall, England, UK |
| 3.9km (2.4 miles) | ⓘBlackpool China Clay Pit, Trewoon, St Mewan, Cornwall, England, UK |
| 4.6km (2.8 miles) | ⓘStenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, Cornwall, England, UK |
| 4.9km (3.1 miles) | ⓘGreat Wheal Prosper China Stone Quarry, Hendra Downs, St Dennis, Cornwall, England, UK |
| 5.3km (3.3 miles) | ⓘRostowrack China Clay Pit, Hendra Downs, St Dennis, Cornwall, England, UK |
| 5.9km (3.7 miles) | ⓘLady Rashleigh Consols, Prideaux, Luxulyan (Luxullian), Cornwall, England, UK |
| References |
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Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK