| 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 Le Ruguel, Collorec, Châteaulin, Finistère, Brittany, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 271052 |
| Long-form Identifier: | 1:3:271052:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcedony |
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| 8.0km (5.0 miles) | ⓘCoat ar Roc'h area, Lannédern, Châteaulin, Finistère, Brittany, France |
| 37.8km (23.5 miles) | ⓘCléguériou, Logonna-Daoulas, Brest, Finistère, Brittany, France |
| 44.4km (27.6 miles) | ⓘLe Rhun Mine, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France |
| 48.4km (30.1 miles) | ⓘKernivaigne quarry, Riec-sur-Bélon, Quimper, Finistère, Brittany, France |
| 49.0km (30.5 miles) | ⓘSiec island, Santec, Morlaix, Finistère, Brittany, France |
| 49.6km (30.8 miles) | ⓘLe Stang quarry, Guilligomarc'h, Quimper, Finistère, Brittany, France |
| 56.4km (35.1 miles) | ⓘKerguillo quarry, Guilers, Brest, Finistère, Brittany, France |
| 57.6km (35.8 miles) | ⓘMané Tanguy, Guern, Pontivy, Morbihan, Brittany, France |
| 58.7km (36.5 miles) | ⓘKerroc'h, Guern, Pontivy, Morbihan, Brittany, France |
| 59.0km (36.6 miles) | ⓘQuistiav (Quistiave), Guern, Pontivy, Morbihan, Brittany, France |
| References |
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