| Locality type: | Mine |
| Classification |
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| Species: | Chrysocolla |
| Formula: | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Formation: | Secondary |
| Comments: | An analysis of transparent-translucent white-very pale blue crust SEM-EDX has shown an aluminium free chrysocolla February 2026. |
| Quality for species: | Poor for species, only of interest for locality collectors. (#) |
| Abundance at site: | Common |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Brochantite | 11 |
| Goethite | 10 |
| Parnauite | 10 |
| Malachite | 4 |
| Chalcoalumite | 3 |
| Pseudomalachite | 2 |
| Cornwallite | 2 |
| Plumboagardite | 2 |
| Arsenopyrite | 2 |
| Alunite Group | 2 |
| Quartz | 2 |
| Liskeardite | 1 |
| Redgillite | 1 |
| Birnessite | 1 |
| Connellite | 1 |
| Bayldonite | 1 |
| Cuprite | 1 |
| Native Copper | 1 |
| Chalcophyllite | 1 |
| Strashimirite | 1 |
| Mixite | 1 |
| Chlorite Group | 1 |
| Mimetite | 1 |
| Cyanotrichite | 1 |
| Data |
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| Mineral Data: | Click here to view Chrysocolla data |
| Locality Data: | Click here to view Penberthy Croft Mine, St Hilary, Cornwall, England, UK |
| Photo Gallery | View Gallery (7 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 3682 |
| Long-form Identifier: | 1:3:3682:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chrysocolla |
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| 1.8km (1.1 miles) | ⓘWheal Squire, St Erth, Cornwall, England, UK |
| 2.1km (1.3 miles) | ⓘWheal Prosper, St Hilary, Cornwall, England, UK |
| 4.2km (2.6 miles) | ⓘWheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK |
| 5.8km (3.6 miles) | ⓘPrince George Mine, Rosewarne and Herland United Mines (Rosewarne and Herland Mine; incl. Wheal Fancy; Wheal Pleasure), Copperhouse, Hayle, Cornwall, England, UK |
| 11.0km (6.9 miles) | ⓘWheal Trannack, Trannack, Wendron, Cornwall, England, UK |
| 14.9km (9.2 miles) | ⓘCarn Brea Mine, Pool, Carn Brea, Cornwall, England, UK |
| 15.5km (9.6 miles) | ⓘWheal Basset, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK |
| 16.4km (10.2 miles) | ⓘCopper Hill Mine, Redruth, Cornwall, England, UK |
| 16.9km (10.5 miles) | ⓘPenstruthal Mine (Bestruthal Mine; incl. North & South Penstruthal Mines), Lanner, Cornwall, England, UK |
| 17.3km (10.7 miles) | ⓘWheal Trefusis (incl. East Wheal Trefusis), Redruth, Cornwall, England, UK |
| References |
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Penberthy Croft Mine, St Hilary, Cornwall, England, UK