| Locality type: | Pit |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Great Wheal Prosper China Clay Pit, Trezaise (Tresayes), Roche, Cornwall, England, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1223089 |
| Long-form Identifier: | 1:3:1223089:9 |
| GUID (UUID V4): | d5f53729-75d3-4e42-b7e3-eed2d43d80a1 |
| Nearest other occurrences of Opal |
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| 0.9km (0.6 miles) | ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK |
| 1.2km (0.8 miles) | ⓘRock Hill China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK |
| 1.5km (0.9 miles) | ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK |
| 2.6km (1.6 miles) | ⓘGreat Longstone China Clay Pit, Longstone Downs, St Mewan, Cornwall, England, UK |
| 4.5km (2.8 miles) | ⓘCarclaze Old Tin Pit, Carclaze China Clay Pit (Baal China Clay Pit), Carludon, Treverbyn, Cornwall, England, UK |
| 4.9km (3.0 miles) | ⓘGreat Wheal Prosper China Stone Quarry, Hendra Downs, St Dennis, Cornwall, England, UK |
| 4.9km (3.0 miles) | ⓘStenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, Cornwall, England, UK |
| 4.9km (3.1 miles) | ⓘBlackpool China Clay Pit, Trewoon, St Mewan, Cornwall, England, UK |
| 5.2km (3.2 miles) | ⓘRostowrack China Clay Pit, Hendra Downs, St Dennis, Cornwall, England, UK |
| 6.7km (4.2 miles) | ⓘLady Rashleigh Consols, Prideaux, Luxulyan (Luxullian), Cornwall, England, UK |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | Geoscience in south-west England FIELD EXCURSION TO STUDY ASPECTS OF THE ST. AUSTELL GRANITE AND ITS...south-west England, 10, 370-372. Camborne School of Mines, University of Exeter, Redruth, Cornwall, TR15 3SE...geology of the St Austell Granite around the area of Roche, especially two localities not much visited by geologists... and secondly to look at some aspects of the china clay industry, especially restoration and waste treatment... the Tresayes Pegmatite Quarry, Great Wheal Prosper China Clay Pit and Gunheath China Clay Pit were visited |
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