| Locality type: | Quarry |
| Classification |
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| Species: | Quartz var: Chalcedony |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Chalcedony data |
| Locality Data: | Click here to view Coat ar Roc'h area, Lannédern, Châteaulin, Finistère, Brittany, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 271045 |
| Long-form Identifier: | 1:3:271045:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcedony |
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| 8.0km (5.0 miles) | ⓘLe Ruguel, Collorec, Châteaulin, Finistère, Brittany, France |
| 29.9km (18.6 miles) | ⓘCléguériou, Logonna-Daoulas, Brest, Finistère, Brittany, France |
| 47.0km (29.2 miles) | ⓘSiec island, Santec, Morlaix, Finistère, Brittany, France |
| 48.9km (30.4 miles) | ⓘKerguillo quarry, Guilers, Brest, Finistère, Brittany, France |
| 49.5km (30.8 miles) | ⓘKernivaigne quarry, Riec-sur-Bélon, Quimper, Finistère, Brittany, France |
| 52.0km (32.3 miles) | ⓘLe Rhun Mine, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France |
| 54.0km (33.6 miles) | ⓘLe Stang quarry, Guilligomarc'h, Quimper, Finistère, Brittany, France |
| 64.2km (39.9 miles) | ⓘMané Tanguy, Guern, Pontivy, Morbihan, Brittany, France |
| 65.4km (40.6 miles) | ⓘKerroc'h, Guern, Pontivy, Morbihan, Brittany, France |
| 65.5km (40.7 miles) | ⓘQuistiav (Quistiave), Guern, Pontivy, Morbihan, Brittany, France |
| References |
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