| Locality type: | Colliery |
| Classification |
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| Species: | Quartz |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Quartz data |
| Locality Data: | Click here to view Markham Colliery, Markham, Caerphilly, Wales, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1013801 |
| Long-form Identifier: | 1:3:1013801:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Quartz |
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| 3.2km (2.0 miles) | ⓘMarine Colliery, Cwm, Blaenau Gwent, Wales, UK |
| 4.0km (2.5 miles) | ⓘOakdale Colliery, Oakdale, Caerphilly, Wales, UK |
| 4.0km (2.5 miles) | ⓘBedwellty Pits, Tredegar, Blaenau Gwent, Wales, UK |
| 8.4km (5.2 miles) | ⓘBlaenserchan Colliery, Abersychan, Torfaen, Wales, UK |
| 9.7km (6.0 miles) | ⓘPrincetown, Caerphilly, Wales, UK |
| 12.3km (7.6 miles) | ⓘBedwas Colliery, Bedwas, Caerphilly, Wales, UK |
| 12.5km (7.7 miles) | ⓘRisca Quarry, Risca, Caerphilly, Wales, UK |
| 12.6km (7.8 miles) | ⓘRisca Colliery (Blackvein Colliery), Risca, Caerphilly, Wales, UK |
| 13.0km (8.1 miles) | ⓘWindsor Colliery, Abertridwr, Caerphilly, Wales, UK |
| 14.0km (8.7 miles) | ⓘMachen quarry, Machen, Caerphilly, Wales, UK |
| References |
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