| 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 Kerroc'h, Guern, Pontivy, Morbihan, Brittany, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 287065 |
| Long-form Identifier: | 1:3:287065:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcedony |
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| 1.1km (0.7 miles) | ⓘQuistiav (Quistiave), Guern, Pontivy, Morbihan, Brittany, France |
| 1.3km (0.8 miles) | ⓘMané Tanguy, Guern, Pontivy, Morbihan, Brittany, France |
| 19.7km (12.2 miles) | ⓘLead mine, Saint-Maudé, Baud, Pontivy, Morbihan, Brittany, France |
| 21.3km (13.2 miles) | ⓘLe Rhun Mine, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France |
| 24.7km (15.4 miles) | ⓘLe Stang quarry, Guilligomarc'h, Quimper, Finistère, Brittany, France |
| 25.5km (15.9 miles) | ⓘLa Lande quarry, Plumelin, Pontivy, Morbihan, Brittany, France |
| 47.2km (29.3 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 |
| 58.7km (36.5 miles) | ⓘLe Ruguel, Collorec, Châteaulin, Finistère, Brittany, France |
| 61.4km (38.2 miles) | ⓘDuer, Sarzeau, Vannes, Morbihan, Brittany, France |
| References |
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