| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view La Barre Mine (La Martinèche Mine), Saint-Jacques-d'Ambur, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 112391 |
| Long-form Identifier: | 1:3:112391:3 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 15.9km (9.9 miles) | ⓘPuy de Ténuzet quarry, Saint-Ours-les-Roches, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 24.9km (15.5 miles) | ⓘPuy de Lassolas, Saint-Genès-Champanelle, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 25.6km (15.9 miles) | ⓘPuy de la Vache, Saint-Genès-Champanelle, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 30.5km (19.0 miles) | ⓘCôte des Pompes, Saulzet-le-Chaud, Romagnat, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 31.6km (19.6 miles) | ⓘPuy de Crouel, Clermont-Ferrand, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 31.9km (19.8 miles) | ⓘPuy de la Poix, Clermont-Ferrand, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 34.1km (21.2 miles) | ⓘGergovie, La Roche-Blanche, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 37.9km (23.5 miles) | ⓘMineral spring, Saint-Nectaire, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 38.5km (23.9 miles) | ⓘChamp des Poix mine, Pont-du-Château, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 40.4km (25.1 miles) | ⓘPuy du Mur Quarry, Mur-sur-Allier, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| References |
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