| 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 Quistiav (Quistiave), Guern, Pontivy, Morbihan, Brittany, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 286527 |
| Long-form Identifier: | 1:3:286527:0 |
| GUID (UUID V4): | 8eb94da0-1e19-4a60-a513-cbb8764cdc33 |
| Nearest other occurrences of Chalcedony |
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| 1.1km (0.7 miles) | ⓘKerroc'h, Guern, Pontivy, Morbihan, Brittany, France |
| 1.4km (0.9 miles) | ⓘMané Tanguy, Guern, Pontivy, Morbihan, Brittany, France |
| 18.9km (11.7 miles) | ⓘLead mine, Saint-Maudé, Baud, Pontivy, Morbihan, Brittany, France |
| 22.2km (13.8 miles) | ⓘLe Rhun Mine, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France |
| 24.0km (14.9 miles) | ⓘLe Stang quarry, Guilligomarc'h, Quimper, Finistère, Brittany, France |
| 25.0km (15.5 miles) | ⓘLa Lande quarry, Plumelin, Pontivy, Morbihan, Brittany, France |
| 46.5km (28.9 miles) | ⓘKernivaigne quarry, Riec-sur-Bélon, Quimper, Finistère, Brittany, France |
| 50.5km (31.4 miles) | ⓘLa Villeder, Le Roc Saint-André, Pontivy, Morbihan, Brittany, France |
| 59.0km (36.6 miles) | ⓘLe Ruguel, Collorec, Plonévez-du-Faou, Châteaulin, Finistère, Brittany, France |
| 93.6km (58.2 miles) | ⓘCléguériou, Logonna-Daoulas, Brest, Finistère, Brittany, France |
| References |
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