| Locality type: | Quarry |
| Classification |
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| Species: | Orthoclase |
| Formula: | K(AlSi3O8) |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Orthoclase data |
| Locality Data: | Click here to view Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 198783 |
| Long-form Identifier: | 1:3:198783:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Orthoclase |
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| 16.2km (10.1 miles) | ⓘCroas an Nivit, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France |
| 27.1km (16.8 miles) | ⓘKerbizien, Poullaouen, Châteaulin, Finistère, Brittany, France |
| 70.2km (43.6 miles) | ⓘTrou du Lion, Kerroc'h, Ploemeur, Lorient, Morbihan, Brittany, France |
| 72.5km (45.0 miles) | ⓘGarvadan (Kervaden), Logonna-Daoulas, Brest, Finistère, Brittany, France |
| 72.8km (45.2 miles) | ⓘCorps de Garde, Ile-de-Batz, Morlaix, Finistère, Brittany, France |
| 81.8km (50.8 miles) | ⓘKeremma, Tréflez, Morlaix, Finistère, Brittany, France |
| 86.7km (53.9 miles) | ⓘBilou beach, Terre du Pont, Brignogan-Plages, Plounéour-Brignogan-Plages, Brest, Finistère, Brittany, France |
| 91.3km (56.8 miles) | ⓘPenfeunteun, Bourg-Blanc, Brest, Finistère, Brittany, France |
| References |
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