| Locality type: | Mine |
| Classification |
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| Species: | Chamosite |
| Formula: | Fe52+Al(AlSi3O10)(OH)8 |
| Formation: | Primary |
| Comments: | Confirmed associated with bettertonite, Penberthycroftite, and liskeardite. |
| 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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|
| Quartz | 5 |
| Bettertonite | 4 |
| Arsenopyrite | 3 |
| Data |
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| Mineral Data: | Click here to view Chamosite data |
| Locality Data: | Click here to view Penberthy Croft Mine, St Hilary, Cornwall, England, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 956132 |
| Long-form Identifier: | 1:3:956132:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chamosite |
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|
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| 0.6km (0.4 miles) | ⓘEnnys Wheal Virgin, St Hilary, Cornwall, England, UK |
| 13.9km (8.6 miles) | ⓘSouth Crofty Mine, Pool, Carn Brea, Cornwall, England, UK |
| 16.3km (10.1 miles) | ⓘNew Tolgus Shaft, Tarewaste, Redruth, Cornwall, England, UK |
| 18.1km (11.2 miles) | ⓘGeevor Mine, Pendeen, St Just, Cornwall, England, UK |
| 20.6km (12.8 miles) | ⓘCarharrack Mine, Gwennap, Cornwall, England, UK |
| 22.4km (13.9 miles) | ⓘMount Wellington Mine (Wheal Magpie), Cusgarne, Gwennap, Cornwall, England, UK |
| 80.5km (50.0 miles) | ⓘSouth Caradon Mine, Caradon Hill, St Cleer, Cornwall, England, UK |
| 81.1km (50.4 miles) | ⓘPhoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK |
| 81.2km (50.5 miles) | ⓘSharptor Mine (West Sharptor Mine), Sharptor, Linkinhorne, Cornwall, England, UK |
| 90.9km (56.5 miles) | ⓘSilver Valley Mine (William and Mary Worth Mine; incl. Ashburton Mine), Sevenstones, Calstock, Cornwall, England, UK |
| References |
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Grey, I.E., Kampf, A.R., Price, J.R., Macrae, C.M. (2015) Bettertonite, [Al6(AsO4)3(OH)9(H2O)5]·11H2O, a new mineral from the Penberthy Croft mine, St. Hilary, Cornwall, UK, with a structure based on polyoxometalate clusters. Mineralogical Magazine, 79 (7) 1849-1858 doi:10.1180/minmag.2015.079.7.16 |
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Penberthy Croft Mine, St Hilary, Cornwall, England, UK