| Locality type: | Mine |
| Classification |
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| Species: | Marcasite |
| Formula: | FeS2 |
| Comments: | Bladed xls to 2mm |
| Habit: | Typical habits |
| Quality for species: | Poor for species, only of interest for locality collectors. (#) |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Optical Analysis |
| Associated Minerals Based on Photo Data: |
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| Anglesite | 3 |
| Susannite | 3 |
| Bechererite | 2 |
| Pyrite | 2 |
| Data |
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| Mineral Data: | Click here to view Marcasite data |
| Locality Data: | Click here to view Esgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 16883 |
| Long-form Identifier: | 1:3:16883:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Marcasite |
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| 1.9km (1.2 miles) | ⓘBlaenceulan Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| 2.1km (1.3 miles) | ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| 3.7km (2.3 miles) | ⓘBryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK |
| 6.9km (4.3 miles) | ⓘBrynarian Mine (Cardigan Bay Consols Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK |
| 7.6km (4.7 miles) | ⓘErglodd mine (Eurglawdd Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK |
| 8.1km (5.1 miles) | ⓘLlechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK |
| 8.2km (5.1 miles) | ⓘAlltycrib Mine (Talybont Mine; Middleton Mine; North Cardigan Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| 8.3km (5.2 miles) | ⓘPlynlimon Mine, Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK |
| 12.1km (7.5 miles) | ⓘBacheiddon Mine, Penegoes, Powys, Wales, UK |
| 12.5km (7.8 miles) | ⓘYstumtuen Mine, Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK |
| References |
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Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK