| Locality type: | Open-Cast Mine |
| Classification |
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| Species: | Ankerite |
| Formula: | Ca(Fe2+,Mg)(CO3)2 |
| Comments: | Xls to 1.5cms |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Quartz | 45 |
| Chalcopyrite | 36 |
| Calcite | 3 |
| Siegenite | 3 |
| Millerite | 1 |
| Data |
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| Mineral Data: | Click here to view Ankerite data |
| Locality Data: | Click here to view Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK |
| Photo Gallery | View Gallery (7 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 39204 |
| Long-form Identifier: | 1:3:39204:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Ankerite |
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| 10.1km (6.3 miles) | ⓘGlyn Gwilym Isaf Opencast, Clyne and Melincourt, Neath Port Talbot, Wales, UK |
| 19.2km (12.0 miles) | ⓘInternational Colliery, Blaengarw, Bridgend, Wales, UK |
| 20.8km (12.9 miles) | ⓘFforchaman Colliery, Cwmaman, Rhondda Cynon Taf, Wales, UK |
| 25.6km (15.9 miles) | ⓘMargam Pit, Margam Moors, Neath Port Talbot, Wales, UK |
| 30.5km (19.0 miles) | ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK |
| 34.4km (21.4 miles) | ⓘBargoed Colliery, Bargoed, Caerphilly, Wales, UK |
| 48.8km (30.3 miles) | ⓘDalrhiw, Rhayader, Powys, Wales, UK |
| 50.9km (31.6 miles) | ⓘRhiwnant Mine, Rhayader, Powys, Wales, UK |
| 60.6km (37.7 miles) | ⓘForeland Cliffs (incl. Foreland Point), Countisbury, Lynton, North Devon, Devon, England, UK |
| 61.2km (38.0 miles) | ⓘCountisbury Beach, Countisbury, Lynton, North Devon, Devon, England, UK |
| References |
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Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK