| Locality type: | Mine |
| Classification |
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| Species: | Cornwallite |
| Formula: | Cu5(AsO4)2(OH)4 |
| Comments: | XRD and SEM |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | XRD |
| Associated Minerals Based on Photo Data: |
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| Olivenite | 10 |
| Goethite | 8 |
| Philipsburgite | 5 |
| Parnauite | 3 |
| Cornubite | 3 |
| Chrysocolla | 2 |
| Quartz | 2 |
| Mimetite | 1 |
| Strashimirite | 1 |
| Langite | 1 |
| Brochantite | 1 |
| Bayldonite | 1 |
| Pseudomalachite | 1 |
| Data |
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| Mineral Data: | Click here to view Cornwallite data |
| Locality Data: | Click here to view Penberthy Croft Mine, St Hilary, Cornwall, England, UK |
| Photo Gallery | View Gallery (12 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 3984 |
| Long-form Identifier: | 1:3:3984:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Cornwallite |
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| 2.1km (1.3 miles) | ⓘCroft Gothal Mine, St Hilary, Cornwall, England, UK |
| 4.2km (2.6 miles) | ⓘWheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK |
| 14.1km (8.7 miles) | ⓘTincroft Mine, Pool, Carn Brea, Cornwall, England, UK |
| 19.0km (11.8 miles) | ⓘBotallack Mine, Botallack, St Just, Cornwall, England, UK |
| 19.1km (11.9 miles) | ⓘWheal Cock, Botallack Mine, Botallack, St Just, Cornwall, England, UK |
| 19.2km (11.9 miles) | ⓘTing Tang Mine, Carharrack, Cornwall, England, UK |
| 20.2km (12.6 miles) | ⓘWheal Muttrall, Wheal Gorland, St Day, Cornwall, England, UK |
| 20.4km (12.7 miles) | ⓘWheal Gorland, St Day, Cornwall, England, UK |
| 20.4km (12.7 miles) | ⓘWheal Jewel, Gwennap, Cornwall, England, UK |
| 20.9km (13.0 miles) | ⓘWheal Unity, Gwennap, Cornwall, England, UK |
| References |
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Penberthy Croft Mine, St Hilary, Cornwall, England, UK