| Locality type: | Mine |
| Classification |
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| Species: | Pyrolusite |
| Formula: | Mn4+O2 |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Pyrolusite data |
| Locality Data: | Click here to view Llechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 17301 |
| Long-form Identifier: | 1:3:17301:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Pyrolusite |
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| 6.8km (4.2 miles) | ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| 8.6km (5.4 miles) | ⓘDrosgol Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK |
| 21.1km (13.1 miles) | ⓘEsgair Geulan, Pennant, Powys, Wales, UK |
| 57.2km (35.5 miles) | ⓘMynydd Nodol Mine (Manganese Royal Mine), Mynydd Nodol, Llanycil, Gwynedd, Wales, UK |
| 63.1km (39.2 miles) | ⓘBenallt Mine, Rhiw, Aberdaron, Gwynedd, Wales, UK |
| 66.6km (41.4 miles) | ⓘBlack Radley Hill, More, Shropshire, England, UK |
| 70.0km (43.5 miles) | ⓘNew Venture Mine (Stiperstones Mine), Stiperstones, Worthen with Shelve, Shropshire, England, UK |
| 70.1km (43.5 miles) | ⓘMyttonsbeach Mine, Stiperstones, Worthen with Shelve, Shropshire, England, UK |
| 73.0km (45.4 miles) | ⓘCallow Hill Quarry, Minsterley, Shropshire, England, UK |
| 73.8km (45.8 miles) | ⓘWestcott Mine, Pulverbatch, Church Pulverbatch, Shropshire, England, UK |
| References |
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