| 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 Cléguériou, Logonna-Daoulas, Brest, Finistère, Brittany, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1215840 |
| Long-form Identifier: | 1:3:1215840:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcedony |
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| 20.7km (12.9 miles) | ⓘKerguillo quarry, Guilers, Brest, Finistère, Brittany, France |
| 29.9km (18.6 miles) | ⓘCoat ar Roc'h area, Lannédern, Châteaulin, Finistère, Brittany, France |
| 37.8km (23.5 miles) | ⓘLe Ruguel, Collorec, Châteaulin, Finistère, Brittany, France |
| 43.6km (27.1 miles) | ⓘBestrée, Pointe du Raz, Plogoff, Quimper, Finistère, Brittany, France |
| 47.0km (29.2 miles) | ⓘSiec island, Santec, Morlaix, Finistère, Brittany, France |
| 66.2km (41.2 miles) | ⓘKernivaigne quarry, Riec-sur-Bélon, Quimper, Finistère, Brittany, France |
| 78.2km (48.6 miles) | ⓘLe Stang quarry, Guilligomarc'h, Quimper, Finistère, Brittany, France |
| 81.8km (50.8 miles) | ⓘLe Rhun Mine, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France |
| 92.4km (57.4 miles) | ⓘMané Tanguy, Guern, Pontivy, Morbihan, Brittany, France |
| 93.6km (58.1 miles) | ⓘKerroc'h, Guern, Pontivy, Morbihan, Brittany, France |
| References |
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